Multifunctional bottle cap

The utility model relates to a multifunctional bottle cap comprising a bottle cap body, wherein the inner chamber of the bottle cap body is provided with a loader which is fixedly connected with the bottle cap body. The lower end of the bottle cap is provided with a bottle cap opening connected with the bottle opening and the upper end of the bottle cap body is provided with a loader opening. The loader is provided with a compression bar and the lower end of the compression bar is pressed on the bottom of the loader and the upper end of the compression bar is provided with a pressure-bearing flat surface and the size and shape of the pressure-bearing flat surface are relative to the inner chamber cross-section of the loader. The pressure-bearing flat surface is lower than the upper end of the bottle cap body. The upper end of the bottle cap main body is coated with a layer of sealing film for sealing the loader opening. An upper sealing cap for covering the upper end of the bottle body is arranged outside of the sealing film. An anti-dropping convex blocking for preventing the upper sealing cap from dropping is arranged between the upper sealing cap and the bottle cap body. A safety ring for preventing the upper sealing cap being pressed downward is arranged on the lower end of the upper sealing cap. The lower end of the upper sealing cap top surface is provided with a jacking block. The utilization of the compression bar device of the utility model is simple, convenient and reliable and achieves low cost.