Purifoy announced his intentions to leave school after the Gators' 37-7 loss to No. 2 Florida State on Saturday.
The Pensacola, Fla., native was a two-year starter for Florida and finished the 2013 season with 24 total tackles, 3.5 tackles for loss, two sacks, two interceptions and seven pass breakups. In October, SI.com's Chris Burke projected Purifoy as the No. 31 overall pick in the 2014 NFL draft.