The invention discloses a steering valve used in double pumps under well, with better reliability and sealing property. When one pump is working, another pump should be sealed, therefore, they can be used alternatively. The invention comprises a Y-shape bidirectional valve base, and a valve ball inside the valve base; the upper part of Y-shape bidirectional valve base has a central hole; and the lower part has two through holes which connect the central hole; and said two through holes have connectors. |