Hot air deicing total pressure sensor

The invention provides a hot air deicing total pressure sensor, and aims to provide a total pressure sensor which is high in hot air energy utilization rate. The hot air deicing total pressure sensoris implemented according to the technical scheme that the total pressure of an incoming flow is conducted through a side hole at the surface of a boss plug (9) arranged in a channel of a total pressure port (6); a heating air flow provided by an engine and a hot air generator flows to an area easy to freeze at the windward front edge of an airspeed tube supporting arm (2) through a lower hot air flowing channel (14) from a hot air interface (4), the heating air flow is disturbed through spoilers (13) arranged adjacent to two sides of the total pressure port, the hot air flow is enhanced in heat transfer through the disturbance, then sequentially gets into a first annular flow channel, a second annular flow channel and a third annular flow channel along an internal cavity of the total pressure port and performs hea