A kind of new type of airflow preheating device includes heating tube (1), diversion pipe (2), diversion pipe (2) lower ending opening upper end closed, heating tube (1) upper and lower ends opening Diversion pipe (2) is nested in heating tube (1), and the outer wall of diversion pipe (2) is equipped with guiding device, is provided with airflow hole (23) on diversion pipe (2) lower end wall Snorkel (3) are set inside diversion pipe (2), snorkel (3) is the hollow pipe of both ends open The outer diameter of snorkel (3) is less than the internal diameter of diversion pipe (2), makes to form airflow space between snorkel (3) outer wall and diversion pipe (2) inner wall The maximum outside diameter of the guiding device of diversion pipe (2) outer wall is less than or equal to the internal diameter of heating tube (1) Snorkel (3) is from lower end air inlet, air-flow enters the region between diversion pipe (2) inner wall and snorkel (3) outer wall through snorkel (3) top, enter the space that diversion pipe (2) outer wall and heating tube (1) inner wall are formed through the airflow hole (23) on diversion pipe (2) wall again, is flowed out from bottom to top from the top of diversion pipe (2) through guiding device guidance air-flow. Air-flow preheating device makes electronic cigarette outer wall be not easy to generate heat using the airflow channel of optimization.
