Vehicle-mounted nitrogen making machine

The utility model belongs to the technical field of nitrogen making, and discloses a vehicle-mounted nitrogen making machine which comprises a cabinet, a gas source unit, an air pretreatment unit, a nitrogen purification unit, a filling adjustment unit and an electrical control unit, the gas source unit, the air pretreatment unit, the nitrogen purification unit and the filling adjustment unit are arranged in the cabinet; the top of the cabinet is provided with a fan for exhausting air upwards, the left side is provided with a fan for exhausting air inwards, the front side is provided with an air inlet shutter, the bottom of the cabinet is provided with a shock absorber, and the top of the cabinet is also provided with a hanging ring interface; the air source unit is arranged at the bottom of the cabinet, and an inlet of the air pretreatment unit is connected with an outlet of the air source unit. The internal structure of the nitrogen making machine is unitized, maintenance is convenient, the shock absorber i