Cable connector for intrinsically safe circuit of coal mining work field

The utility model provides a cable connector for an intrinsically safe circuit of a coal mining work field and the cable connector is convenient to replace and not prone to damage. The cable connector comprises a first base seat and a second base seat and the first base seat and the second base seat are connected together. A signal connecting device is arranged between the first base seat and the second base seat and a hole of a U-shaped card is respectively arranged on the first base seat and the second base seat. The cable connector for the intrinsically safe circuit replaces a threaded port with a fast-plugging port, and accordingly complicated steps of installation are effectively changed, replacement becomes more convenient and the port is not prone to damage even if the cable connector is used for a long time. Meanwhile, the cable connector is corrosion-resistant in appearance, small and light in size, high in stability, simple to install, easy to operate, convenient to replace, not prone to damage and