Soil sample preparation crusher

The utility model discloses a soil sample preparation crusher, which relates to the field of soil crushing equipment, and comprises a crusher body which comprises a dust collection outer cover and a lifting fixing plate, the lifting control device is arranged on the side, close to the lifting fixing plate, of the pulverizer body. The lifting type crushing cutter is arranged in an inner cavity of the dust collection outer cover and comprises a container cover and a fixed main plate, and a crushing motor hole is formed in the fixed main plate and used for placing a crushing motor; the lifting motor is connected with and drives the lead screw nut B. A nut seat of the lead screw nut B is fixedly connected with the smashing motor, so that the smashing motor moves up and down in a lifting mode. The soil container is arranged under the dust collection outer cover and used for being matched with the container cover to achieve sealing. The condition that the lower part is thin and the upper part is thick when soil is