Coal mine underground alarm for ensuring personal safety and use method thereof

The invention discloses a coal mine underground alarm for ensuring personal safety, which comprises a convenient alarm mechanism, a danger information acquisition mechanism, an information transmission mechanism and a precise positioning mechanism, and is characterized in that the precise positioning mechanism comprises a radio transceiver and an electronic timer which are arranged in a tunneling roadway at an interval; the precise positioning mechanism is used for precise positioning of underground personnel, and the radio transceiver is connected with the sub-network switch through an optical fiber and is connected with the monitoring host through the ground network switch and the signal converter. According to the coal mine underground alarm for ensuring the personal safety, through the arrangement of the convenient alarm mechanism, the danger information acquisition mechanism, the information transmission mechanism and the precise positioning mechanism, the position of a worker can be precisely positioned