Rotating buffer valve

The invention discloses a rotating buffer valve which is applied to a crane hydraulic system. The rotating buffer valve comprises a valve body with two main oil channels, wherein the valve body is also provided with a pilot control oil opening a, a pilot control oil opening b, an oil inlet P, an oil return opening T, an oil discharging opening L, an oil opening A and an oil opening B, and the oil opening A and the oil opening B are connected with an oil inlet and an oil outlet of a rotating motor; a three-position six-way pilot operated directional control valve, a main overflow valve and a free sliding-rotating electromagnetic valve are mainly installed in the valve body; the two main oil channels leading to the oil opening A and the oil opening B are respectively provided with an adjustable backpressure valve; a throttling oil channel which is communicated with the two main oil channels is arranged between the two main oil channels, and an intersection point between the throttling oil channel and each main oil channel is closer to the oil opening A and the oil opening B than the adjustable backpressure valve. The rotating buffer valve is compact in structure, small in size, low in cost, convenient to install and operate, high in applicability, wide in use, good in inching performance, precise in rotation location and stable to stop.