The invention discloses a malt pretreatment device, comprising a base, wherein a
processing box is arranged at the top of the base, a box door is movably connected at the top of the front surface of the
processing box, four corners of the bottom of the
processing box are fixedly connected with supporting legs, and the bottoms of the supporting legs are fixedly connected with the base. By cooperation of the base, a sliding mechanism, a transmission mechanism, the supporting legs, a connecting block, a housing, a movable rod, a sealing sleeve, a drain
pipe, a control valve, a fixed housing, a
discharge port, a conveying
pipe, a rotating rod, a first motor, a spray head, a water conveying
pipe, a screen cylinder, a connecting rod, a
solenoid valve, a filter screen, a receiving tank, a processing tank, a water tank, a suction pipe, a water pump, a water outlet pipe, a tension spring, a movable plate, a slide rod, a spring, a
slide plate and the box door, the problems that an existing maltpretreatment device is not convenient for a user to collect the processed malt, does not have a cleaning and screening integrated function, and is not convenient for the user to use are solved.