Bidirectional leakage-free slide valve type shuttle valve

The utility model provides a bidirectional leakage-free side valve type shuttle valve; the bidirectional leakage-free slide valve type shuttle valve comprises a valve body which is provided with valve ports at two ends and bottom thereof; a valve channel is arranged inside the valve body; the valve channel is coaxial to the valve ports at two ends of the valve body, and is used for communicating the valve ports at the two ends and the bottom of the valve body; a valve core is arranged inside the valve body; one end of the valve body is coaxially provided with a hollow end cap; the other end is provided with a limitation through hole; concentric sealing rings are arranged inside the valve body; the sealing rings are symmetrically distributed on bilateral sides of the valve port at the bottom of the valve body; the length of the valve core is a little bit longer than the distance between the sealing rings on the bilateral sides of the valve port; two end faces of the valve core are tapered faces. The shuttle valve is simple in structure, good in sealability, free of leakage, low in manufacturing cost, and high in reliability.