Construction waste smashing method

A construction waste smashing method adopts a device comprising a frame body, a smashing device, a feeding hopper, support devices, a receiving device, a separating device and rollers. The frame body is provided with first supports, concentrating blocks, first fixed blocks and first through holes. The feeding hopper is hollow, the lower surface of the feeding hopper is fixedly connected with the upper surface of the frame body, and the interior of the feeding hopper communicates with the interior of the frame body. The smashing device comprises a first smashing wheel, first smashing teeth, a second smashing wheel and second smashing teeth. The support devices comprise first transverse rods, second supports, first inclined rods and first vertical rods. The receiving device comprises a receiving box, a first supporting rod, first triangular blocks and second triangular blocks. The separating device comprises a jacking block, a supporting frame, a pushing rod, a separating frame, an air cylinder, a cushion plate