This utility model discloses an atomizing core, an atomizing device, and an atomizing equipment. The atomizing core includes: an atomizing tube with an atomizing chamber inside, and an oil inlet hole in the tube wall connecting the atomizing chamber and the outside; a first oil-guiding cotton, installed in the atomizing chamber, with an installation cavity extending to both ends of the first oil-guiding cotton inside, the outer
peripheral wall of which abuts against the inner
peripheral wall of the atomizing tube and blocks the inner side of the oil inlet hole; and a second oil-guiding cotton, inserted into the installation cavity and surrounding the
cavity wall to form a ventilation channel, at least one end of which communicates with the atomizing chamber, the ventilation channel being located close to the oil inlet hole, and the cross-sectional area of the ventilation channel being 0.01–1 mm. 2 The
heating element is installed on the second oil-guiding cotton to fit against its inner wall. The ventilation channel formed by this technical solution can store gas, and because it is a cavity, it can greatly reduce the obstruction of gas flow in the atomizing chamber to the oil inlet, thereby allowing the gas in the atomizing chamber to flow quickly to the position near the oil inlet, improving the ventilation speed.