The utility model provides an optical cable blowing dryer, including two splint, fix nozzle and the base that is used for the bearing splint on splint, the slip can be adjusted to two splint on the base, be equipped with the clearance space that the optical cable freely passes through between two splint, the nozzle sets up the inboard at two splint, the extension line of two nozzles place straightline is the acute angle and collects, is equipped with the nozzle bore on the nozzle, and the nozzle bore moves towards the direction that two nozzles collect, blowing dryer simple structure, can weather the processing to the optical cable of different thickness sizes through two splint adjustable modes, make the application scope increase of blowing dryer, can effectively reduce weathering the in -process and to the damage that leads to the fact of optical cable, improve optical -cable production efficiency simultaneously.