Screening machine for producing edible mushroom freeze-dried powder

The utility model discloses a screening machine for producing edible mushroom freeze-dried powder, which relates to the technical field of raw material crushing devices and comprises a base plate and a box body, and a plurality of fixing columns are mounted at the top of the base plate. During feeding, raw materials are placed on a drawer, a second motor is started, two lifting plates and the drawer synchronously ascend under the action of a second transmission assembly, when the lifting plates and the drawer ascend to the top of a fixed plate, the second motor is closed, a first motor is started, a movable plate, two lead screws and the drawer move into a feeding port under the action of a first transmission assembly, and the first motor is closed; a second motor is started, at the moment, two lead screws continue to synchronously rotate, two lifting plates are driven to continue to ascend, two connecting rods and two L-shaped columns are driven to move in the direction of the box body under the compression