Ploughing, leveling and stone crushing device

The utility model discloses a ploughing, leveling and stone crushing device which comprises a housing (1) with an open bottom, a roller (2) rotatably mounted between the left and right side walls in the housing, a plurality of form relieved teeth (3) uniformly arranged on the wall of the roller, a speed reducer (4) arranged on the housing, and an output shaft of the speed reducer connected with a rotating shaft of the roller. By rotating the roller, the shovel teeth shovel soil into the housing and then discharge the soil, and the soil is spread under the combined action of the inner wall of the housing, the roller and the shovel teeth and then laid back to the cultivated land, so that the purpose of leveling the cultivated land can be achieved. When encountering soil containing gravel blocks, the gravel blocks are extruded and crushed into particles through the extrusion channel between the housing and the roller, and the problem that the gravel blocks influence cultivation in cultivated land can be solved.