Wet coal screening machine for laboratory

The utility model discloses a laboratory wet coal screening machine which comprises a box body, a box door is arranged on the side face of the box body, a screening frame is arranged in the box body,a standard screen is arranged in the screening frame, a screen cover is arranged at the top of the standard screen, and a standard screen fixing support with meshes is arranged at the bottom of the screening frame. A water tank with an opening in the upper end is arranged at the bottom of the standard screen fixing support, a vibration platform is arranged at the bottom of the water tank, a frequency modulation vibration motor is arranged at the bottom of the vibration platform, the vibration platform is supported through a supporting base, and a water outlet is formed in one side of the watertank and provided with a filtering device which is connected with the water inlet end of a water pump. The water outlet end of the water pump is connected to the screening frame through a water pipe.The problems that an exist