The invention provides a shot blasting deruster, which comprises a deruster body. The deruster body comprises a derusting bin, a spraying bin, a shot blasting device, spraying equipment and an
electric control box; the derusting bin comprises a workpiece fixing device and a screening device, and the screening device comprises a first filtering screen, a second filtering screen, a collecting bin, asecond motor and a second connecting rod; the spraying bin comprises a spraying bin body and a waste liquid recovering bin; the shot blasting device comprises a shot blasting equipment main body anda dedusting device, and the dedusting device comprises a dedusting
pipe, an exhaust fan and a dedusting box; and the spraying equipment comprises a
liquid storage box, a water pump, a liquid feeding box, a liquid discharging
pipe and a spray head, and the
liquid storage box comprises a box body, a liquid injecting hole, a second sensor and an
LED lamp. The function of automatic shot conveying is achieved, shot is dedusted, the undamaged shot can be recycled, finally a workpiece is sprayed with an anti-rusting agent, and the shot blasting deruster is simple in structure, complete in function and high in
automation degree.