Rotary shear crushing machine for solid wastes

The invention discloses a rotary shear crushing machine for solid wastes. The rotary shear crushing machine for solid wastes comprises a crushing outer casing, wherein the crushing outer casing is ofa hollow structure; two groups of rotary wheels are arranged in the crushing outer casing, and are aligned; each rotary wheel is of a cylinder structure; eight groups of cutting knives are arranged atthe outer side of each rotary wheel, and are arranged in an array way; fixed cutting knives are fixedly arranged at the inner walls of the two sides of the crushing outer casing, and are vertically connected with the inner walls of the two sides of the crushing outer casing; the fixed cutting knives are aligned with the rotary wheels; the cutting knives at the surfaces of the two groups of rotarywheels are crossly arranged; two groups of material leading plates are arranged in the crushing outer casing, and are respectively arranged at the inner walls of the two sides of the crushing outer casing; a material screening