Novel remote pneumatic audio signal transmission control gas circuit

The utility model discloses a novel remote pneumatic audio signal transmission control gas circuit, which relates to the field of audio signal transmission equipment under a mine and is formed by connecting a signal sending end gas circuit and a signal receiving end gas circuit through a long-distance gas pipeline. According to the utility model, the pressure regulating valve and the pressure sequence valve are arranged in the control air path, so that a pressure maintaining function is formed in an air pressure pipeline for long-distance signal transmission, and the signal transmission delay time caused by small drift diameter of compressed air, overlarge pressure drop in long-distance transmission and overslow pressure rise is greatly shortened; two pneumatic control valves which are used for supplying air to an air horn and releasing pressure to a pressure maintaining air path in a reversing manner at the same time are arranged in an air path of a signal receiving end, so that the ringing duration time of