Double-channel butterfly valve

The utility model relates to the technical field of butterfly valves, and discloses a double-channel butterfly valve which comprises a valve body, a pipeline connecting flange is fixedly installed on the valve body through bolts, a connecting pipeline is fixedly connected to the side face of the pipeline connecting flange, and a fixing equipment shell is fixedly connected to the side face of the connecting pipeline. According to the double-channel butterfly valve, by arranging a connecting shaft, an L-shaped clamping block, a right-angle blocking block and a telescopic rod, when the flow direction needs to be changed, the right-angle blocking block fixedly installed on the side face of the L-shaped clamping block with the surface fixedly connected in a clamped mode is controlled to rotate in the process that the connecting shaft rotates in a connecting lantern ring; and in the rotating process, the two ends of the right-angle blocking block are attached to the inner wall of the fixing equipment shell, then th