The invention relates to the technical field of air compressors, in particular to an integrated oil-
gas separation and cooling
air compressor which comprises a base, an oil-
gas cooler arranged at the upper end of the base, an oil-
gas separation tank, an
air compressor body and a filter mounting seat. The
air compressor body is provided with an air inlet, an oil liquid inlet and an oil gas output port. The oil-
gas cooler is fixedly provided with an oil-gas outlet and an oil-gas inlet; an oil-gas input port, an oil liquid output port and a
compressed air output port are fixedly formed in the oil-
gas separation tank; an oil-gas filter and an oil liquid filter are further arranged at the upper end of the filter mounting seat, a driving motor is fixedly connected to the upper end of the oil-gas separation tank, an air compressor body is further arranged on the oil-gas separation tank, the output end of the driving motor is fixedly connected with the air compressor body, and an oil-gas output port is connected with an oil-gas input port; the oil liquid output port is communicated with the oil-gas inlet, and the oil-gas outlet is communicated with the oil liquid inlet through the filter mounting seat.