Combined-type oxidation electrolyte tank

The invention discloses a combined-type oxidation electrolyte tank. The combined-type oxidation electrolyte tank comprises a liquid storage tank, a cathode tank, a copper plate anode and a stirring system, wherein the cathode tank is movably placed on a middle support in the liquid storage tank to form an interlayer structure with the liquid storage tank, and the interlayer space is the liquid storage tank; the inner wall of the cathode tank is made from stainless steel, the outer wall of the cathode tank is made from insulating plastic, and the copper plate anode is fixed on the tank wall at the upper end of the liquid storage tank; the top surface of the sidewall of the cathode tank is slightly lower than the top surface of the sidewall of the liquid storage tank, and an overflow port is reserved in the top surface of the sidewall of the cathode tank; an electrolyte circulation cooling inlet-outlet pipeline port is communicated with the cathode tank and the liquid storage tank respectively, and an electroly