Two-way metering water meter accurate to L position

The invention relates to the technical field of two-way metering water meters, and discloses a two-way metering water meter accurate to an L position. Comprising a water meter body, a water inlet pipe is fixedly connected to the side surface of the water meter body, a water outlet pipe is fixedly connected to the side surface of the water meter body, a water meter plate is arranged on the front surface of the water meter body, a display screen is arranged on the front surface of the water meter plate, and a flywheel is arranged on the front surface of the water meter plate. A second reduction gear rotates to drive a movable rod to rotate, a beating plate can rebound and beat back and forth through elasticity of a second spring, a springing plate can drive an extrusion base to extrude or pull the spring, and the extrusion base can penetrate through a hollowed-out plate below adsorption cotton to enter the adsorption cotton to extrude the adsorption cotton. And lubricating oil can drop on the surface of the sec