Milk bottle cleaning machine with overhead water tank

A milk bottle cleaning machine with an overhead water tank is characterized by comprising a main machine, an opening is formed in the top end of the main machine to form a cleaning cavity, a heating disc and a milk bottle support are installed at the bottom of the cleaning cavity, and a milk bottle is arranged outside the milk bottle support in a sleeving mode for cleaning; a top cover is arrangedat the top of the main machine, a water tank is formed in the top cover in a hollow mode, a water adding opening is formed in the top of the top cover of the water tank and communicated with the water tank, and the top cover is inserted into a positioning hole in the top of the main machine through a plurality of guide columns at the bottom of the top cover to achieve connection between the top cover and the main machine. And a water outlet seat is arranged in any one of the guide columns and is connected with a water inlet seat arranged in the positioning hole at the corresponding position,so that the communication