The invention relates to an elbow pushing device capable of pushing an elbow. The elbow pushing device comprises a base, a supporting sea, a main fixed wall, an auxiliary fixed wall, a movable wall, a sliding piece, a steel rail, a clamping device, a heating coil, a baffle and a hydraulic cylinder, and is characterized by also comprising an elbow oil cylinder, a pulling arm, a sleeve, a clamp, a connecting rod, a bearing, a bearing block and a positioning pin, and one end of the elbow oil cylinder is connected with the bearing block; the bearing is arranged in the bearing block, and the clamp is connected with one end of the pulling arm; the sleeve is sleeved on the pulling arm, and one end of the connecting rod is connected with the lower end of the sleeve; the other end of the connecting rod is arranged in the bearing, and a positioning hole is formed in the upper end of the sleeve; and a bolt hole, corresponding to the positioning hole of the sleeve, is arranged on the pulling arm, and the positioning pin is arranged in the positioning hole and the bolt hole. The elbow pushing device provided by the invention has the advantages of saving a large workshop building area and saving equipment cost.