Rail purging device for switch

The utility model relates to the field of metal processing, and provides a railroad switch rail purging device which comprises an air supply pipeline and a spray head, the spray head is connected with the air supply pipeline, the spray head comprises an air inlet pipe and an outer pipe, the air inlet pipe is connected between the air supply pipeline and the outer pipe, and the outer pipe is connected with the air supply pipeline. The outer pipe is arranged above the railroad switch track, a plurality of nozzles facing the railroad switch track are arranged on the outer pipe, and the nozzles are arranged along the outer pipe and are inclined relative to the vertical direction. According to the utility model, the problem that the railroad switch cannot operate normally due to the fact that the fallen oxidizing slag is accumulated in the shearing process of the metal bar and oil sludge is formed at the railroad switch track is solved, the shearing quality of the metal bar is improved, and the production and main