Air filter material cutting device

The utility model discloses an air filter material cutting device which is characterized in that a hydraulic cylinder mounting seat is further fixed on a base, a hydraulic cylinder is mounted on the hydraulic cylinder mounting seat, an upper knife edge fixing plate is fixed at the lower end of the hydraulic cylinder, an annular upper knife edge is fixed below the upper knife edge fixing plate, and a lower knife edge is fixed below the annular upper knife edge. A lower knife edge fixing plate is installed at the position, right opposite to the first blanking hole, of the upper face of the base, an annular lower knife edge corresponding to the annular upper knife edge is fixed to the lower knife edge fixing plate, and a second blanking hole identical with an inner hole of the annular lower knife edge is formed in the lower knife edge fixing plate. The center of the inner hole of the annular upper knife edge, the center of the inner hole of the annular lower knife edge, the center of the second blanking hole and