Gas-liquid two-phase oil well metering device with high-efficiency separation of four tube bundles

The invention discloses a gas-liquid two-phase oil well metering device with high-efficiency separation of four tube bundles. A liquid inlet pipe is connected with the inlet side of a four-tube bundlegas-liquid separation unit, the outlet side of the four-tube bundle gas-liquid separation unit is connected with a liquid outlet pipe through a meter, the upper part of the four-tube bundle gas-liquid separation unit is connected with an air outlet pipe, and the tail end of the air outlet pipe communicates with the liquid outlet pipe; and the four-tube bundle gas-liquid separation unit comprisesa four-tube bundle separation tank, a liquid collection tank and a transverse liquid-gathering pipe, the four-tube bundle separation tank adopts a 2 * 2 vertical arrangement structure of single separation tanks, the inlet side of the liquid collection tank is connected with the liquid inlet pipe, four outlets of the liquid collection tank are respectively connected with the four single separationtanks of the four-tube bund