Integrated device for separation of oil-field production liquid and treatment of sewage

The invention discloses an integrated device for separation of oil-field production liquid and treatment of sewage, which comprises a cartridge type horizontal tank and a cyclone arranged outside the tank, a labyrinth commutation board, a corrugated board, a tipping plate, an oil overflow dam board, a radio frequency admittance detecting instrument, an air-out cartridge, an oil collection chamber, an oil chamber, a modified polypropylene bead, a waterpower sand flushing apparatus, a drug charging tube, an agitator, a water outlet, a pump circulation oil collection port and an oil outlet port, characterized in that the cylinder type horizontal tank is provided with a cyclone separator.