Solid waste crushing and screening device

The utility model belongs to the technical field of environmental protection equipment, and discloses a solid waste crushing and screening device which comprises a main body and a feeding hopper, a crushing device, a magnetic separation device, a discharging groove, a crushing device and a screening plate are sequentially arranged in the main body from top to bottom, and a plurality of door platescapable of being opened and closed are further arranged on the main body. The crushing device comprises a plurality of crushing rollers and a power generation device; the sieve plate comprises a sieve plate main body and a cam mechanism for driving the sieve plate main body to slide. The solid waste crushing and screening device disclosed by the utility model can be used for crushing solid wastessuch as concrete, screening out metal substances in the solid wastes and collecting the metal substances in the solid wastes for secondary utilization. In the using process, only solid waste needs tobe added into the equipmen