Lithium battery liquid injection opening cleaning and discharging device

The utility model relates to a lithium battery liquid injection port cleaning and discharging device, a battery liquid injection jig comprises a supporting plate and a retainer cup detachably connected with the supporting plate, the discharging device comprises a conveying mechanism, and the conveying mechanism is sequentially provided with a retainer cup discharging station and a battery discharging station along the conveying path of the conveying mechanism; the discharging mechanism is erected above the conveying mechanism, the discharging mechanism comprises a retainer cup discharging assembly used for taking out retainer cups and a battery discharging assembly used for taking out batteries loaded on the supporting plate, and the retainer cup discharging assembly and the battery discharging assembly are both configured to move in the conveying direction of the conveying mechanism; and the cleaning assembly is arranged on the retainer cup discharging station and located below the conveying path of the conv