Dust falling device for DMC raw material crushing

The utility model discloses a dust falling device for DMC raw material smashing, the dust falling device for DMC raw material smashing comprises a smashing structure, a drying structure and a dust falling structure, the smashing structure comprises a first box body, a first feeding pipe, a smashing assembly and a discharging assembly, the first feeding pipe is communicated with the first box body, and the drying structure is communicated with the first box body; the crushing assembly is arranged in the first box body, the discharging assembly is arranged in the first box body, the drying structure comprises a second feeding pipe, a second box body, a first motor, an air heater, an air outlet pipe and a branch pipe, the second feeding pipe communicates with the second box body, and the first motor communicates with the air outlet pipe; the feeding direction of the second feeding pipe corresponds to the discharging assembly, the first motor is installed on the top of the second box body, and the output end of t