Drainage structure of pressure container

The utility model discloses a liquid discharging structure of a pressure container. The pressure regulating valve comprises a valve body, a pressure regulating cavity is formed in the top of the interior of the valve body, a threaded rod is rotationally installed at one end of the interior of the pressure regulating cavity, a rotating disc is installed at the end, extending out of the exterior of the valve body, of the threaded rod, a first spring is installed at the other end of the threaded rod, and a clamping block is installed at the other end of the first spring. According to the pressure container, waste caused by the fact that liquid in the pressure container flows out due to overlarge pressure when the liquid is discharged from the pressure container is avoided, unnecessary damage to personnel, environment and the like is also avoided, in addition, when the liquid is poured into the pressure container, the inner wall of the pressure container is impacted due to the overlarge pressure, and the pressure