The invention provides an atomization pipe assembly, an atomizer having the atomization pipe assembly, and an electronic cigarette having the atomizer. The atomization pipe assembly includes a ventilation main body; the ventilation main body includes an outer ring sleeve, an inner ring sleeve, and an air inlet cross beam arranged between the outer ring sleeve and the inner ring sleeve, wherein theouter ring sleeve and the inner ring sleeve are coaxially arranged; the air inlet cross beam includes a radial ventilation flow channel and an axial ventilation flow channel which communicate with each other; and external air can communicate with an atomization head via the radial ventilation flow channel and the axial ventilation flow channel. The atomizer can effectively remove heat, prevent frying oil, is full in atomization, and is fine and good in mouth feeling.