Aggregate crushing device

The utility model relates to the technical field of smashing devices, and discloses an aggregate smashing device which comprises a smashing box, two sets of smashing rollers are arranged in the smashing box, a discharging port is formed in the bottom end of the smashing box, a feeding port is formed in the top of the smashing box, and supporting blocks are fixedly connected to the top ends of the two sides of the outer wall of the smashing box. The tops of the supporting blocks are fixedly connected with air cylinders, piston rods of the two air cylinders are fixedly connected with cover plates, second baffles are arranged at the bottoms of the cover plates, the two ends of the tops of the second baffles are fixedly connected with air cylinders, and inserting grooves allowing the air cylinders to be inserted are formed in the cover plates. According to the device, the air cylinder and the cover plate are fixedly connected, the air cylinder is externally connected with a power source, horizontal movement of th