Five-phase multi-stage catalytic oxidation reactor

The utility model relates to a five-phase multi-stage catalytic oxidation reactor. The five-phase multi-stage catalytic oxidation reactor comprises a tank body, wherein an inner barrel is arranged in the tank body; a gas vent hole is formed in the top of the tank body; the gas vent hole is connected with a gas exhaustion pipeline; gas vent holes are formed in the middle of an oval end enclosure and the lower part of the tank body; a water inlet is formed in the bottom of the tank body; a water outlet and a discharge tube are arranged on front and rear corresponding sides of the bottom of the tank body; a laminar-flow reaction water outlet region is formed between the inner barrel and the tank body; a filler layer is arranged in the laminar-flow reaction water outlet region; the upper and the lower parts of the laminar-flow reaction water outlet region are sealed by silk screens; upper and lower end surfaces of the filler layer are fixed on the outer part of the inner barrel through the silk screens; a quartz tube and an ultrasonic tube are arranged in the inner barrel; dosing holes are alternatively formed in the middle of the inner barrel; four aeration tubes surrounding the laminar-flow reaction water outlet region are arranged between the water outlet and the filler layer; a plurality of aeration holes are formed in the aeration tubes. During wastewater treatment, a solid phase, a liquid phase, a gas phase, a light phase and a sound phase are integrated, so that the treatment efficiency of the wastewater is greatly improved.