Filtering device for chemical analysis experiment

The utility model discloses a filtering device for a chemical analysis experiment. The filter cartridge is arranged at the upper end of the bottom plate; the filter cartridge comprises a first filtercartridge and a second filter cartridge; the first filter cartridge is fixed with the bottom plate through a side rod; the second filter cartridge is fixed at the bottom of the first filter cartridge;a filter element is arranged in the second filter cartridge; the shunting frame comprises a shunting plate and a conical table; the splitter plate is fixed in the first filter cartridge; a pluralityof shunting holes are formed in the shunting plate; the conical table is fixed in the middle of the splitter plate; the tip of the conical table extends out of the first filter cartridge; a shunting groove is formed in the side wall of the conical table; a screw rod is fixedly arranged on one side of the baffle ring, a guide rod is fixedly arranged on the other side of the baffle ring, the screw rod and the guide rod movabl