Three-phase ozone biological fluidized bed

The utility model discloses a three-phase ozone biological fluidized bed, which relates to the technical field of micro-polluted water treatment, and comprises a fluidized bed main body and a water inlet buffer pool, the fluidized bed main body and the water inlet buffer pool are integrally arranged, the upper part of the fluidized bed main body is communicated with the water inlet buffer pool, and water can only enter the water inlet buffer pool from the fluidized bed main body; a supporting layer, a bearing layer, a biological fluidization layer, a labyrinth type biological carrier separator and a three-phase separator are sequentially arranged in the fluidized bed main body from bottom to top; the water inlet buffer pool and the fluidized bed main body realize water circulation, stable fluidization of the fluidized bed and entering of ozone through a circulating water pump and a self-excitation pulse cavitation jet device; according to the utility model, ozone aeration and biological fluidization are integ