Cut-off type reversing valve suitable for electrolytic aluminum factory in high-temperature heavy-dust environment

The invention discloses a cut-off type reversing valve suitable for an electrolytic aluminum factory in the high-temperature heavy-dust environment and relates to the technical field of reversing valves. The cut-off type reversing valve suitable for the electrolytic aluminum factory in the high-temperature heavy-dust environment comprises a valve body. A locating assembly is arranged in the valvebody and comprises a lining and a locating rod. A valve rod assembly is arranged in the lining and comprises a valve rod and a stop block. The two ends of the valve rod are provided with threads. Theouter portions of a first supporting ring and a second supporting ring are provided with nuts. The threads are connected with the nuts. The outer wall of the lining is provided with multiple grooves.Third rubber rings are arranged in the grooves. A first exhaust hole, a first gas outlet hole, an intake hole, a second gas outlet hole and a second exhaust hole are located on the same plane. The cut-off type reversing valve s