Filter cartridge with spiral extrusion device

A filter cartridge body comprises an upper plate and a lower plate, a plurality of movable rings and fixed rings which are arranged at intervals are arranged between the upper plate and the lower plate to form the side wall of the filter cartridge body, the lower plate is provided with a first through hole communicated with the interior of the filter cartridge body, and the fixed rings are connected with the upper plate and the lower plate through connecting rods. A plurality of spacing gaskets are arranged between every two adjacent fixed rings, the movable rings are arranged between inner rings formed by connecting lines of the spacing gaskets, a spiral shaft is arranged in the center of the filter cartridge body, a driving assembly for driving the spiral shaft to rotate is arranged on the spiral shaft, a shaft connected with all the movable rings is arranged in the filter cartridge body, and the shaft is connected with the spiral shaft. The spiral shaft rotates in the positive direction, the spiral shaft e