Electronic cigarette atomizer

An electronic cigarette atomizer, comprising:

• an atomizing assembly,
• a smoke duct, and
• a cigarette holder,
• wherein the smoke duct comprises a liquid storage cavity for storing tobacco liquid and a flue;
• the smoke duct is cooperatively mounted respectively with the atomizing assembly and the cigarette holder,
• wherein the atomizing assembly comprises:
• a holding frame, comprising an air channel communicated with the flue and end-surface slots for accommodating a heating module;
• and
• the heating module, comprising a ceramic base body and a heating wire wound on the ceramic base body, wherein the heating wire is electrically connected with the holding frame, and the ceramic base body is of a hollow micropore structure and is communicated with the liquid storage cavity;
• wherein the holding frame comprises an outer holding frame, a middle holding frame and an inner holding frame, the outer holding frame and the inner holding frame are conductive holding frames, and the middle holding frame is an insulating holding frame and nested between the outer holding frame and the inner holding frame for insulating and isolating the outer holding frame and the inner holding frame and sealing the liquid storage cavity;
• and
• wherein the end-surface slots of the outer holding frame and the inner holding frame comprise a large end-surface slot and a small end-surface slot respectively, and the large end-surface slot of the outer holding frame and the small end-surface slot of the inner holding frame are disposed on a same side.