Wet oxidation treatment device of wastewater

The utility model provides a wet oxidation treatment device of wastewater. The wet oxidation treatment device comprises a raw water storage tank, a hydrogen peroxide storage tank, a raw water pump, a hydrogen peroxide pump, a heat exchanger and a reactor, wherein the raw water storage tank is communicated with an inlet located at one end of the heat exchanger by the raw water pump via a pipeline, an outlet of the hydrogen peroxide pump is communicated with the pipeline at the inlet of the raw water pump by a pipeline, and the pipeline located at the outlet of the heat exchanger tangentially comes into the bottom of the reactor; when wastewater is treated by the device, the process is simple, the reaction temperature and pressure are relatively low, chemical agents are mixed with raw water well, the heat loss is low, the energy consumption is low and the removal rate of COD (Chemical Oxygen Demand) is more than 80%.