Filling and inflating integrated device for filling machine

The utility model discloses a filling and inflating integrated device for a filling machine, which comprises a mounting frame, a first cylinder, a discharge pipe, a lifting rod, a fixed cylinder, a fixed frame, a liquid inlet and an air inlet, the mounting frame is provided with the first cylinder which is vertically arranged downwards, the first cylinder is connected with one fixed frame, the first cylinder drives the fixed frame to vertically move up and down, and the lifting rod is connected with the fixed frame. A vertically arranged lifting rod is mounted on the fixing frame, a pressing plate is arranged at the bottom of the mounting frame, a fixing cylinder matched with the lifting rod is arranged on the pressing plate, the lifting rod extends into the fixing cylinder, a discharging pipe is fixed at the bottom of the pressing plate, the discharging pipe is communicated with the bottom of the fixing cylinder, and a liquid inlet is formed in the side wall of the fixing cylinder. The plugging block is arra