Lynn were in dreamland five minutes later when a brilliant turn by Jason Turner saw him lose his marker in the box before side-footing the ball past Sean Bowles.
Coalville reduced the arrears with their first real attack of any note when Robbins burst clear of the Lynn offside trap before beating Danny Gay.
The goal breathed fresh life into the Leicestershire visitors who almost equalised mid-way through the half as Cameron Stuart saw his effort brilliantly scrambled off the line by Phil Gulliver.
Midfielder Dan Quigley should have restored Lynn's two-goal advantage going into the interval but he somehow contrived to sky the ball over from six yards out after a slick move involving both Dunkley and Spriggs.
The half-time whistle saw Coalville's Jerome Murdock appear to blast the ball towards the watching Lynn fans in the crowd to stoke the already-tense atmosphere as the players left the field. Coalville scorer Robbins had to be restrained by his own players from confronting Lynn fans as the teams took to the field for the second half.
Lynn were almost caught napping as Callum Woodland's shot came back off Gay's right post. The Walks outfit were forced to soak up long spells of Coalville possession in the second half before Dunkley had an effort ruled out for offside.
The game was wrapped up as a contest two minutes from time when Spriggs burst clear before firing past Bowles to send the home supporters into delirium.
More angry exchanges involving Coalville players erupted as they left the pitch, while their counterparts deservedly soaked up the applause from the home faithful.
Lynn: Gay, Watson, Yong, Lee, Gulliver, Bunting, Spriggs (Beaumont) 89, Quigley, Dunkley, Turner (Forshaw 58), Thurlbourne (Bexfield 70)
Subs: - Buhlemann, Street
Scorer: Spriggs (8 mins, 88), Turner (12). Booked: Quigley, Spriggs
Coalville: Bowles, Jenno, Hill, Stuart (C), Miveld, Powell (Davidson 56), Woodward, Dodd, Carney (Carline 78), Murdock, Robbins.
Subs: Gibson (gk), Blankley, Leigh.
Scorer: Robbins (18) Booked: Dodd, Jenno Report by permission of the Lynn News