Abstract: The present patent application discloses a multifunctional feeding-bottle, including an outer cup, a liner, a nipple assembly connected to an opening of the outer cup, and a bottom cover connected to the bottom of the outer cup. The feeding-bottle further includes a valve piece disposed between the bottom of the outer cup and the bottom cover. An air inlet is disposed in a central part of a body of the valve piece. A stiffener is disposed at a part other than the air inlet. A cavity is formed between one side of the valve piece provided with the stiffener and the bottom cover. A sealing protrusion capable of sealing the air inlet is disposed at a central part of the bottom cover. An air vent is disposed at a part different from the sealing protrusion. The liner is disposed in the outer cup, and is configured to be removed from the outer cup.