Atomizer capable of preventing oil leakage

The utility model relates to the technical field of atomizers, and discloses an anti-oil-leakage atomizer which comprises a cigarette rod body, a cigarette cartridge body installed at the top of the cigarette rod body and an air outlet formed in the top of the cigarette cartridge body and further comprises a vent groove formed in the cigarette cartridge body and communicated with the air outlet. A cotton core body is installed on the lower portion of the interior of the ventilation groove, oil storage bin bodies and sliding grooves are formed in the two sides of the interior of the cigarette rod body, and cylindrical grooves communicating with the sliding grooves are formed in the lower portions of the inner walls of the oil storage bin bodies; the cylindrical groove can be sealed, so that the possibility that tobacco tar continues to flow to the cotton core body when the atomizer is idle is reduced, the situation that tobacco tar leaks after the atomizer is idle for a long time is avoided, and the problem th