To provide a squeeze foamer which can be attached to a bottle with a small capacity with the structure of a mechanism part simplified and the inner plug part miniaturized.

The squeeze foamer is equipped with the inner plug body 20 which is put on the mouth part 16 of a squeeze container 12 and has an insertion portion 27 penetrated inside and outside and an outside air indraft portion 33. There is equipped with a valve member 38 which is attached to the insertion portion 40 of the inner plug body 20 and closes the outside air indraft portion 33. There are provided with a porous body 59 attached to the lower stream of the valve member 38 and a tube 60 attached to the upper stream of the valve member 38 and prolonged to the bottom part of the squeeze container 12. The valve member 38 is equipped with a gas-liquid mixing chamber 47, a narrow segment 44 having a passage 45 making the gas-liquid mixing chamber 47 communicate with the inside of the squeeze container 12 and a check valve 42. The narrow segment 44 is equipped with a liquid introducing passage 41 to send a liquid in the squeeze container 12 and an air introducing passage 43 to send air in the squeeze container 12 to the narrow segment 44.