The utility model discloses a coal charger cleaning tube relief valve, including cleaning tube and valve gap board, the port department at cleaning tube is established to the valve gap board, be equipped with on the valve gap board to let out to explode the hole, correspond on the valve gap board to let out and explode the hole and be equipped with the board that turns over that can overturn. This safety valve structure reasonable in design, relief valve in use let out when exploding not fragilely, and impact resistance is good, prevent that the inside explosion of coal charger pipeline from assaulting to blow up the emergence that leads to the fact personal damage accident, safe and reliable with the apron.