Hydraulic pulper

The utility model provides a hydrapulper which is used for solving the problems that an existing hydrapulper is poor in pulping effect and low in discharging efficiency. The hydrapulper comprises a cylinder, the lower end of the cylinder is communicated with a conical barrel body, the lower end of the conical barrel body is in threaded connection with a discharging bin, a screen drum is arranged in the discharging bin through a spring, the feeding end of the screen drum is opposite to a discharging opening of the conical barrel body, a plurality of backflushing pipes are arranged on the outer wall of the discharging bin, and a motor is arranged below the conical barrel body. A rotating shaft driven by a motor penetrates through the discharging bin and the screen drum to stretch into the conical barrel body, a cutter head is arranged at the end of the rotating shaft, the rotating shaft is slidably connected with the discharging bin and the screen drum, a connecting shaft is arranged on the rotating shaft, a pr