Pressure monitoring device of nitrogen making machine

The embodiment of the utility model provides a pressure monitoring device of a nitrogen making machine, and relates to the technical field of nitrogen making. The nitrogen making machine pressure monitoring device comprises a first nitrogen making unit and a second nitrogen making unit, waste nitrogen can be discharged through a ventilation pipe and an emptying pipe, the pressure of the nitrogen making machine pressure monitoring device can be detected under the action of a pressure transmitting monitoring part, and when the pressure transmitting monitoring part is detected, one end of a power source body is pushed through a pushing part, so that the pressure transmitting monitoring part is detected. The internal gas is discharged and sent into the pressure transmitting monitoring part, whether the pressure detection data is different from the quantitative test gas or not is judged according to comparison with the quantitative test gas sent by the power source body, so that whether the pressure transmitting m