The invention provides a composite filter element and a water purifier containing the same. A division plate, a first filtering cavity and a second filtering cavity are arranged in a shell of the composite filter element; the first filtering cavity and the second filtering cavity are formed through division by the division plate; filtering materials are arranged in the first filtering cavity and the second filtering cavity; a water stopping assembly is arranged at the opening position of the shell; the water stopping assembly comprises a water dividing piece and a water block piece; a water dividing flow channel is formed in the water dividing piece; a water block flow channel is formed in the water blocking piece; the water dividing piece is provided with a water dividing piece docking port; the water blocking piece is provided with a water blocking piece docking port; the water blocking piece and the water dividing piece realize docking and staggering of the water dividing piece docking port and the water blocking piece docking port through relative rotation; the water dividing flow channel comprises a first water dividing flow channel communicated with the first filtering cavityas well as a second water dividing flow channel communicated with the second filtering cavity; and the water dividing piece is provided with a drainage pipe which stretches into the division plate. Compared with the prior art, the composite filter element has the advantages of high sealing property, no water channeling and water seepage risks, good rotary operation hand feeling, low assembling difficulty, long service life and the like.