Fuente: WIPO "dairy products" The invention relates to the technical field of dairy product processing, in particular to a water ejection device for dairy product filling equipment. The water ejection device comprises a water supply source and a disinfection tank body, the water supply source communicates with the disinfection tank body through a water supply pipeline, and the disinfection tank body is provided with at least two water inlets and a water outlet. A first water inlet of the disinfection tank body communicates with the water supply pipeline, a water outlet of the disinfection tank body communicates with a second water inlet of the disinfection tank body through a circulating pipeline, and a first branch pipeline used for communicating with a dynamic mixer of filling equipment is arranged on the circulatingpipeline. The water ejection device has the effects of reducing the processing cost and reducing the odor channeling risk.