Aluminum air battery circulation system

The utility model discloses an aluminum air battery circulating system which comprises an aluminum air battery, a filtering device and a circulating pump, the aluminum air battery comprises an electrolytic tank, aluminum anodes, air cathodes and cathode supporting plates, the cathode supporting plates are symmetrically arranged on the two sides of the electrolytic tank, the air cathodes are installed on the electrolytic tank in a pressed mode, corresponding air flow guide holes are formed in the centers of the electrolytic tank and the cathode supporting plates, and a plurality of positioning holes in one-to-one correspondence are formed in the edges of the electrolytic tank and the cathode supporting plates. Positioning bolts penetrate through the positioning holes to fix and lock the electrolytic cell, the air cathode and the cathode supporting plate; the aluminum anode is inserted into the electrolytic bath, an electrolyte outlet of the electrolytic bath is connected to the filtering device, the filtering