本实用新型涉及一种多功能轮胎充气枪,属于汽修设备领域。包括枪体,枪体包括手柄、枪管和贯穿枪体内腔的充气管,充气管的前端上固定装有充气嘴;枪管的前端上固定安装有气压表;轮胎充气枪还设有喷水装置,包括固定安装在枪管尾部的储水容器、固定在枪管顶部的喷水器和固定在枪体侧壁上的喷水开关,喷水开关设置 The utility model relates to a multifunctional tire inflation gun, belonging to the field of automobile repair equipment. The utility model comprises a gun body which comprises a handle, a barrel and an inflation pipe penetrating the cavity of the gun body, wherein an inflation nozzle is fixedly arranged on the front end of the inflation pipe; a barometer is fixedly mounted on the front end of the barrel; The device comprises a water storage container fixedly arranged at the tail of the barrel, a water spray fixed on the top of the barrel and a water spray switch fixed on the side wall of the gun body, and the water spray switch is provided