Filling devices for lever filling of bottles with liquids are provided. Such devices may include a body having a vertical inner cavity, an outer tube which is fixed at the top to a bottom wall of a main vessel intended to contain the liquid with which the bottles are to be filled, extending through the inner cavity of the body and projecting downward from the body, an inner tube which is arranged coaxially with the outer tube, extending with a lower portion thereof inside the outer tube and projecting upward from the outer tube, so as to reach with its top end a level higher than the level of the liquid contained in the main vessel. Filling machines containing such devices are also provided.