Multi-filtering device

The utility model relates to the technical field of filtering, in particular to a multiple filtering device which comprises a mounting seat, a convex block, a threaded cylinder, a threaded rod and a fixing box, the outer surface of the mounting seat protrudes outwards to form the convex block, a sliding plate is connected to the convex block in a sliding mode, the threaded cylinder is fixedly connected to the outer surface of the sliding plate, and the threaded rod is fixedly connected to the threaded cylinder. The top of the protruding block is in threaded connection with a screw, and the protruding block is rotationally connected with a clamping block through the screw. The output ends of the electric-hydraulic push rods push the connecting rods to move upwards, the telescopic length of the output ends of all the electric-hydraulic push rods can be adjusted according to the requirement of the installation space so as to adapt to the installation levelness of different flatness or different positions, the in