Gas leakage detection device

The utility model relates to the technical field of detection devices, and discloses a gas leakage detection device, which comprises a shell, a detection mechanism and an illuminating lamp arranged on the top surface of the shell, a display screen and an alarm lamp arranged on the front surface of the shell, a buzzer arranged on the back surface of the shell, a back clamp arranged below the buzzer, an air inlet arranged on the bottom surface of the back clamp, and a hanging rope arranged on the bottom surface of the shell, an air suction pipe and a battery are arranged in the shell; a micro pump body is arranged at one end of the air suction pipe; according to the gas leakage detection device, the universal pipe is installed on the top face of the shell, the top end of the universal pipe is connected with the probe, the universal pipe has good hardness and can be bent at will, and when a detected gas pipe is installed in a narrow space, the radian of the universal pipe can be adjusted so that the probe can ma