Double-loop intelligent mining safety communication circuit and telephone set

The utility model relates to a double-loop intelligent mining safety communication circuit and a telephone set, and the communication circuit comprises a double-loop switching circuit which is electrically connected with a main control processor of the telephone set and is used for receiving an input signal entering a mining intrinsic safety type automatic telephone set; the telephone ringing signal detection circuit is electrically connected with the main control processor and is used for receiving an input alternating current signal entering the mining intrinsic safety type automatic telephone; the telephone ringing circuit is electrically connected with the telephone ringing signal detection circuit and is used for receiving an input alternating current signal of the telephone ringing signal detection circuit; and the audio signal processing and protocol communication circuit is electrically connected with the main control processor and is used for receiving and sending voice and protocol signals. A double