Single-hopper combined type shredding machine

The utility model discloses a single-hopper combined type shredding machine, and belongs to the technical field of shredding machines. The single-hopper combined type shredding machine comprises four smashing box hoppers, a metal machining rack is arranged at the bottom of each smashing box hopper, the metal machining racks are connected with the smashing box hoppers through screws, and the smashing box hoppers are connected through screws. In order to solve the problems that although a filtering and collecting frame of a shredding machine in the prior art can filter materials, the working efficiency of the shredding machine is also influenced, and blockage is also caused as the use time goes on, four crushing knife roll structures are mounted in each crushing box hopper; the crushing operation of materials is completed through high-speed rotation of the crushing knife roll, and the four groups of crushing box hoppers can work cooperatively, so that the sufficient crushing space can improve the crushing proce