Sewage catalytic oxidation device

The utility model discloses a sewage catalytic oxidation device which is characterized by comprising a reaction tank, partition plates are oppositely arranged in the reaction tank, the reaction tank is sequentially divided into an adjusting tank, a catalytic oxidation tank and a circulating tank by the partition plates, and air inlet pipes are oppositely arranged in the adjusting tank, the catalytic oxidation tank and the circulating tank; gas inlet valves are arranged at the two ends, outside the reaction tank, of the gas inlet pipes, a first aeration pipe is arranged between the gas inlet pipes, gas inlet branch pipes are arranged on the gas inlet pipes in the catalytic oxidation tank, a second aeration pipe is arranged between the two gas inlet branch pipes, and the second aeration pipe is located above the first aeration pipe; and the second aeration pipe and the first aeration pipe in the catalytic oxidation pond are arranged in a staggered manner. The gas inlet pipes are symmetrically arranged in the re