Bottle plug capable of discharging water

The utility model relates to a bottle plug capable of discharging water. Normally, a bottle container provided with a plug can discharge water by being pulled off a plug body. The bottle plug is easy to pollute, and at the same time, the sealability and the temperature retention are not good. The upper part and the lower part of the plug body of the utility model is communicated. The upper part of an inner cavity of the plug body is a compression bar cavity, the middle part is a water control cavity, and the lower part is a water passing cavity. The upper end of the compression bar sheathed with a restoring spring is extended with the plug body. The middle part passes through the compression bar. The lower end is provided with a compression cover extruding into a water control cavity. The side wall of the water control cavity is provided with a water outlet. The bottle plug which is not required to be pulled off can pour water. When the bottle plug does not pour water, the plug body compression bar is pressed by an outer cover buckled on the bottle so that a bottle mouth can be sealed. The bottle plug has the advantages of convenient use, sanitary, and good heat preservation and sealability.