Cavitation air floatation three-phase separation system

The invention relates to a cavitation air floatation three-phase separation system that comprises a cavitation air flotation machine, a three-phase separator and an air flotation system water outlet pipeline; the three-phase separator comprises a separator body with an opening in the top and a hollow interior and a supporting device, the separator body is provided with a slag inlet pipe and a drainage pipe, and the bottom end of the separator body is provided with a sludge discharge pipe and a control part; a plurality of floating oil observation pipes are arranged on the outer side of the separator body, oil discharge pipes are arranged on the floating oil observation pipes, and oil discharge valves are arranged on the oil discharge pipes; an oil separation plate is arranged in the separator body, the interior of the separator body is divided into a separation oil separation area and a deoiling drainage area by the oil separation plate, the slag inlet pipe is communicated with the separation oil separation a