Medical gas busbar

The utility model discloses a medical gas busbar which comprises a control cabinet, a left gas inlet pipeline, a right gas inlet pipeline and an output pipeline, the left gas inlet pipeline, the right gas inlet pipeline and the output pipeline are respectively connected with the control cabinet, the control cabinet comprises a left input gas pipe, a right input gas pipe, an output gas pipe and a switching device, and the tail end of the left input gas pipe and the tail end of the right input gas pipe are both connected with the output gas pipe. The left air inlet pipeline is connected with the left input air pipe, the right air inlet pipeline is connected with the right input air pipe, the output pipeline is connected with the output air pipe, and switching devices are arranged on the left input air pipe and the right input air pipe so as to automatically control connection or disconnection of the left input air pipe and the right input air pipe through the switching devices according to the air pressure bala