Pneumatic ball valve group for quantitative canning

The utility model is applicable to the technical field of pneumatic ball valves, and provides a pneumatic ball valve group for quantitative canning, a sliding block capable of lifting is arranged in a first butting port, a fixing groove for fixing the sliding block is formed in a second butting port, and the sliding block is arranged in the fixing groove. The first pneumatic ball valve body and the second pneumatic ball valve body are detachably connected together through mutual matching of the sliding blocks and the fixing grooves, and when the first pneumatic ball valve body and the second pneumatic ball valve body need to be connected together, the sliding blocks on the two sides are pressed down; then the other ends of the sliding blocks are aligned to openings of the fixing grooves in the two ends of the second pneumatic ball valve to be pushed in, after the sliding blocks are pushed to the bottom, the hands pressing the two sliding blocks are loosened, the two sliding blocks bounce back under the acting