Abstract: A borehole sucker-rod pumping plant for pumping out gas liquid mixtures comprising a driving rocker to which a string of sucker rods is connected that is secured to a plunger of a deep well pump having a first and suction valve in the lower part of a cylinder, a second suction valve in the cylinder wall at a distance from the first valve, and a pressure valve mounted in the plunger. The plant further comprises a receiving chamber separating the gas liquid mixture into a gas phase and a liquid phase and ensuring that the gas phase gets compressed. The chamber is arranged to be disposed upstream of the cylinder and has in one of the embodiments thereof an outlet valve mounted in its upper part upstream of the first suction valve. In another embodiment, the receiving chamber has an outlet pipeline disposed in the upper part thereof and communicated with the second suction valve.