Gas leakage protection device

The utility model relates to the technical field of fuel gas detection, in particular to a fuel gas leakage protection device which is installed on a wall of a room with a fuel gas outlet and comprises a controller, a sensing module, a control module, a window and a window frame. The window runs in the window frame; the sensing module comprises a fuel gas sensor, the fuel gas sensor is installed in a room and electrically connected with the controller, and the horizontal height of the fuel gas sensor exceeds 95% of the corresponding height of the maximum containing volume of the room. The control module comprises a motor, the motor is electrically connected with the controller, and the motor drives the window to operate in the window frame; according to the utility model, the gas sensor is arranged in a room, as the lowest mixed explosion limit of gas is 5%, once the sensor is activated, the controller is directly informed, and the controller controls the motor to open the window, so that the possibility of e