Activated carbon and ozone catalytic oxidation combined application device

The invention relates to the technical field of wastewater treatment, and discloses an activated carbon and ozone catalytic oxidation combined application device which comprises a box body, and a top cover is arranged at an opening in the top surface of the box body; a water outlet pipe is arranged on the box body; partition plates are arranged in the box body, gaps between the opposite partition plates form hydraulic ascending channels, and gaps between the partition plates and the box body form hydraulic descending channels. A water distribution pipe is arranged in the box body, is positioned in the hydraulic ascending channel, and is used for injecting to-be-treated wastewater into the box body; a gas distribution pipe is arranged in the box body and is used for injecting ozone into the box body; wastewater treatment particles are placed in the box body; a filter plate is arranged in the box body and is used for filtering wastewater treatment particles discharged through the water outlet pipe; the wastewat