Mouthpiece assembly and electronic cigarette

A mouthpiece assembly, wherein the mouthpiece assembly comprises an upper mouthpiece cover, one end of the upper mouthpiece cover is provided with an air exiting hole, and the other end of the upper mouthpiece cover is provided with a smoke outlet hole communicating with the air exiting hole, a movable member is further provided on the upper mouthpiece cover to match with the smoke outlet hole, and by moving the movable member, the smoke outlet hole is opened or closed;

• wherein the mouthpiece assembly further comprises a lower mouthpiece cover, the lower mouthpiece cover is provided with a first air inlet passage and a first air outlet passage, the upper mouthpiece cover is movable relative to the lower mouthpiece cover, when the upper mouthpiece cover is in a first connection state relative to the lower mouthpiece cover, the first air inlet passage is in communication with the outside and the first air outlet passage is in communication with the air exiting hole, and when the upper mouthpiece cover is in a second connection state relative to the lower mouthpiece cover, the first air inlet passage and the first air outlet passage are closed by the upper mouthpiece cover.