Shot blasting machine

The invention discloses a shot blasting machine which relates to equipment for performing surface treating on a metal seal head and an irregular workpiece and mainly aims to solve the problems of low efficiency and the like in treatment on the surfaces of an existing metal seal head and an existing irregular workpiece. The shot blasting machine comprises a screw conveyor, wherein an outlet of the screw conveyor is connected with an inlet of a screw elevator; a discharge hole of a base is connected with an inlet of the screw conveyor; a housing is provided with a shot blasting head; a storage bin is connected with the shot blasting head through a hose; one end of a support arm is arranged on the screw elevator; the other end of the support arm is fixed on the housing; a slewing bearing for supporting a rotating mechanism in a work room is fixed on a flange at the discharge hole of the base; a motor is fixed on the base; a driving tooth disk is arranged on the top of a main shaft of a support frame fixed on the slewing bearing; a seal head support frame on the support frame is provided with support blades; a chuck support plate is fixed on the seal head support frame; the outer end of a chuck shaft is provided with a chuck after the chuck shaft passes through the chuck support plate, and the inner end of the chuck shaft is provided with a driven bevel gear. The shot blasting machine has the advantage of being high in efficiency when being used for performing the surface treating on the workpieces in various shapes.