The invention discloses a combined packer filtering device, and relates to purified water treatment equipment, in particular to the combined packer filtering device which comprises a body (1), a raw water inlet (2), a filtered water outlet (3), a gas inlet (4), a gas outlet (5), a pressure gauge interface (6), an inspection manhole (7), a discharge opening (8), a water distributor (9), a blowoff valve (10), a filtration head (11), a filtration plate (12), a cobblestone supporting layer (13), a fiber ball packer (14), a fiber tow packer (15), a supporting bracket and the like. Through the adoption of the fiber tow packer and the fiber ball packer, which realize gas-water combined backflush, the skillful use of the advantages that the density difference of the two packers is relatively great and the porosities of the two packers are different and the full use of the space of filtering equipment, the combined packer filtering device has the characteristics of superhigh filtering speed, large quantity of pollutants received, easy backflush, high cleanness, simple structure and easy implementation and the like.