The invention discloses a staggered basket type filter, which comprises a shell, a water inlet, a water outlet, a basket type filter cartridge, and a connecting ring. One side of the shell is provided with the water inlet, and the other side is provided with the water outlet. The connecting ring is connected to the inner wall of the shell, and the filter cartridge is connected below the connecting ring. The water inlet and the water outlet are in staggered arrangement in height. The water inlet is disposed below the connecting ring, and the water outlet is arranged over the connecting ring. The bottom of the filter cartridge is provided with a sewage discharge outlet. During use of the staggered basket type filter provided by the invention, a to-be-filtered liquid flows into the shell from the water inlet, is filtered by the filter cartridge in the space between the filter cartridge outer wall and the shell inner wall, then flows into the inner cavity of the filter cartridge, and then flows upward to outflow through the water outlet. Thus, the solid impurities in the filtered liquid can be discharged out of the sewage discharge outlet very conveniently after depositing in the space between the filter cartridge outer wall and the shell inner wall. Therefore, with no need for frequent disassembly of the filter cartridge during usual use, the filter cartridge cleaning requirement can be satisfied, and normal production is ensured.