Injection type portable pressure testing tool

An injection type portable pressure testing tool relates to the technical field of pressure testing, and adopts the technical scheme that the injection type portable pressure testing tool comprises an injector and a connecting piece, an outlet of the injector is connected with an inlet of the connecting piece, a first outlet of the connecting piece is connected with a hose, and an outlet of the hose is connected with a connecting joint connected with a pressure instrument; the second outlet of the connecting piece is connected with a pressure gauge. The technical scheme has the beneficial effects that in the pressure testing process of the pressure instrument, the pressurization testing work of the instrument can be simply and quickly completed under the conditions of not dismounting the instrument, not taking the instrument into a specified laboratory and not increasing the workload, and during measurement, a worker only needs to push the push-pull rod to generate positive and negative pressure, so that the