Crushing device for metal recovery

The invention relates to a crushing device, in particular to a crushing device for metal recovery. The smashing device for metal recovery can conduct double thorough smashing on metal and improve the smashing effect. A smashing device for metal recovery comprises a barrel, a feeding frame, a supporting frame and the like, the supporting frame is fixedly connected to the middle of the outer side of the barrel in the circumferential direction, and the top of the barrel is communicated with the feeding frame. According to the metal grinding device, a servo motor is started firstly, a grinding rotary disc drives a material grinding wheel to rotate, meanwhile, material crushing rollers on the left side and the right side also start to rotate, metal is poured into a feeding frame to be preliminarily crushed by the material crushing rollers firstly, the preliminarily crushed metal continues to fall off and is further crushed by the material grinding wheel, and the further crushed metal falls into a collecting contai