Plate-and-frame filter press convenient for discharging

The utility model belongs to the technical field of plate-and-frame filter presses, and particularly relates to a plate-and-frame filter press convenient for discharging, which comprises a plate-and-frame filter press body, telescopic components positioned on the front and rear sides of a plurality of filter plates are arranged on the upper end face of the plate-and-frame filter press body, and mounting plates are mounted on the front and rear sides of the upper end face of the plate-and-frame filter press body. An air cylinder is mounted on the right side of the rear mounting plate, the output end of the air cylinder is detachably connected with a piston rod, and the left end of the piston rod penetrates through the rear mounting plate and is detachably connected with the right side of the rear telescopic assembly; the telescopic assembly comprises a plurality of connecting plates fixedly connected with the outer side wall of the filter plate, and telescopic mechanisms are mounted between every two opposite