Dental gargling water supply system with sterilization and disinfection functions

The invention provides the functions of sterility and disinfection of a dental treatment chair, a tooth glass, a dental three-purpose spray gun or a mobile phone for treating teeth, and is provided with a water supply pipeline assembly, an air control pipeline assembly and a disinfection pipeline assembly which are communicated with one another; the water supply pipeline assembly is provided with a water filtering control valve which is communicated with the dental treatment chair; the air control pipeline assembly is provided with an air electromagnetic valve which is communicated with the water filtering control valve; the disinfection pipeline assembly is provided with a pressurizer, a disinfectant fluid bottle and an air control valve, disinfectant fluid is contained in the disinfectant fluid bottle which is communicated with the pressurizer, and the air control valve is communicated with the pressurizer and the air electromagnetic valve. The water filtering control valve can be controlled by gas to suppl