Electronic cigarette air inlet structure and electronic cigarette

The utility model provides an electronic cigarette and an electronic cigarette air inlet structure. The electronic cigarette comprises an electronic cigarette body, and a first air inlet is formed in the tail end of the electronic cigarette body; the electronic cigarette air inlet structure comprises a base, a tail cover and a rotating core. The base is fixedly connected to the tail end of the electronic cigarette body. The tail cover is rotatably sleeved on the outer side of the base in a reciprocating motion manner along the axial direction of the base; the rotating core is rotatably arranged on the base; the rotating core is provided with a second air inlet hole and a clamping groove; a clamping bulge is arranged on the inner side wall of the tail cover; when the clamping protrusion is matched with the clamping groove in an inserted mode, the tail cover is rotated to drive the rotating core to rotate, so that the second air inlet hole and the first air inlet hole are aligned or staggered. Under normal cond