Heating module of atomizer and atomizer

The invention discloses a heating module of an atomizer. The heating module comprises a middle cover, a through hole for discharging smoke is formed in the top of the middle cover, a square shell is arranged in the center of the middle cover, a liquid inlet assembly is arranged on the square shell, a heating wire is arranged in the square shell, conductive columns are electrically connected to the bottoms of the two ends of the heating wire, the heating wire is wound around the periphery of the liquid inlet assembly, and a square opening is formed in the square shell; a movable mechanism matched with the square opening is arranged on the square shell, and when the end opening of the through hole faces downwards, the movable mechanism prevents liquid in the middle cover from leaking out of the through hole; the device has the beneficial effects that when a person lies flat to use the device, the partition plate drives the blocking piece to rotate, when dripping liquid exists on the liquid guide body, the block