NOVELTY - A low pressure hydrogen fuel machine with cooling unit comprises a reacting unit comprising a reacting container, fuel supplying pipe connected to the reacting container, a hydrogen inputting pipe, an air inputting master pipe, and a coolant pipe; a supplying unit comprising an air inputting master pipe and an air inputting slave pipe; a coolant unit that is connected to the coolant pipe; a hydrogen unit comprising a first pipe connected to a selector; and a hydrogen generator comprising a second pipe connected to the air inputting slave pipe.    USE - The low pressure hydrogen fuel machine with cooling unit is useful for industrial applications.    ADVANTAGE - The low pressure hydrogen fuel machine with cooling unit has high security, high maneuverability, and good energy gathering effect.    DETAILED DESCRIPTION - A low pressure hydrogen fuel machine with cooling unit comprises a reacting unit comprising a reacting container, fuel supplying pipe connected to the reacting container, a hydrogen inputting pipe, an air inputting master pipe, and a coolant pipe; a supplying unit comprising an air inputting master pipe and an air inputting slave pipe; a coolant unit that is connected to the coolant pipe and used for inputting the coolant to the reacting container by the coolant unit; a hydrogen unit comprising a first pipe connected to a selector; and a hydrogen generator comprising a second pipe connected to the air inputting slave pipe; where the air inputting master pipe is used for transmitting the air to the reacting container by the supplying unit; the selector is connected to the hydrogen inputting pipe and used for transmitting the hydrogen into the reacting container through the first pipe; the switch of the selector and the hydrogen inputting pipe is connected by the hydrogen unit; the air inputting slave pipe is used for transmitting the air into the hydrogen generator by the supplying unit, and the second pipe is also connected to the selector and used for transmitting the hydrogen into the reacting container through the second pipe; the switch of the selector and the hydrogen inputting pipe is connected by the hydrogen generator; and the selector is used for selecting the hydrogen inputting pipes and connected to one of the first pipe or the second pipe.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the low pressure hydrogen fuel machine with cooling unit.