Device for treating chemical nickel-plating waste liquid by autocatalysis method

The utility model discloses a device for treating chemical nickel-plating waste liquid by an autocatalysis method, which comprises an autocatalysis reaction tank, an alkali liquor metering box and a backflow circulating device, and a liquid inlet for introducing the chemical nickel-plating waste liquid, a first interface for inserting a temperature detector and a second interface for inserting a pH detector are arranged at the top of the autocatalysis reaction tank. The chemical adding port is connected with the alkali liquor metering box through a metering pump, a liquid outlet is formed in the bottom of one side of the autocatalysis reaction tank, a circulation inlet and a circulation outlet are formed in the other side of the autocatalysis reaction tank, a stirrer is arranged in the autocatalysis reaction tank, and the outer wall of the autocatalysis reaction tank is wrapped with an electric heating sleeve; the backflow circulation device comprises a microwave generation assembly connected between the circ