Portable communication device for debugging repeater in railway tunnel

The utility model discloses a portable communication device for debugging a repeater in a railway tunnel. Power supply equipment, photoelectric conversion equipment, an automatic telephone and an FC-FC optical fiber coupler are respectively arranged in a box body. The photoelectric conversion device is provided with one FC optical interface and two RJ11 electrical interfaces. The communication device adopts a common portable telephone; the power supply equipment is used for supplying direct current 5V power to the photoelectric conversion equipment and then is connected with the photoelectric conversion equipment through an optical cable, and the RJ11 electric port is connected with the portable automatic telephone. According to the utility model, the space of the box body is reasonably utilized, the reasonable layout of equipment rooms and cables is optimized, and the overall layout of the box body is beautiful and simple. The portable power supply device is convenient to carry and operate, is reasonable in