Leakage-proof automatic discharging liquid storage tank based on double-layer protection

The utility model relates to the technical field of liquid storage tanks, in particular to a leakage-proof automatic discharging liquid storage tank based on double-layer protection. According to the technical scheme, the device comprises an outer tank, a base and an inner tank, the base is fixedly installed at the bottom of the outer tank and fixedly installed on the outer tank through a fixing structure, the inner tank is fixedly installed at the top of the base in the outer tank, a protruding block is fixedly connected to the bottom of the periphery of the outer tank, and a fixing ring is fixedly installed in the fixing structure on the periphery of the protruding block; an anti-collision structure is fixedly connected to the periphery of the outer tank on the top of the fixing ring, a sleeve is fixedly connected between the outer tank and the anti-collision structure, and a push plate is movably installed in the sleeve. The inner tank can be replaced through mutual matching of all structures on the device