Plant sample crusher

The utility model relates to the technical field of plant smashing, in particular to a plant sample smashing machine which comprises a processing box, a sorting box and a discharging assembly. A first-stage cutting assembly and a second-stage crushing assembly located below the first-stage cutting assembly are arranged in the treatment box, the first-stage cutting assembly comprises two rolling rollers which are rotationally connected to the interior of the treatment box and rotate reversely, and spiral cutting blades are arranged on the two rolling rollers; the secondary crushing assembly comprises a first driving motor and a plurality of crushing blades arranged on an output shaft of the first driving motor, and the sorting box communicates with the output end of the processing box. According to the utility model, after plants are preliminarily cut by the primary cutting assembly, the plants are crushed again by the secondary crushing assembly, then materials are screened under the action of the sorting ass