The present invention is a lamp body 10 of an insulating material having a screw-coupling base having a connection terminal at the end of the upper end and a heat dissipation groove is formed around the top and side; U-shaped tube tube 20 formed to extend to the lower side of the lamp body; LEDs 30 disposed in the U-shaped tube tubes and simultaneously connected to the LED substrates disposed in the U-shaped tube tubes to be connected to the LED substrates provided in the lamp body, respectively. ; The ultra fine core is made of brush type to radiate anions and cations into the air by the high voltage generated from the ion generator built in the lamp body to generate hydroxyl radical ions, and to the outside of the end of the U-shaped tube tube. An ion output portion 40 covered by the protective tube so that only the distal end is exposed; The support tube is detachably inserted into the end of the protective tube and at the same time to cover the end of the U-shaped tube tube is made of a cover for preventing contamination around the distal end of the ion output portion due to the ion generation, the cover to the ion A protective cap 50 formed with a through hole for supporting the distal end portion of the output portion in communication with the support tube; And a switch mode 60 for manually adjusting the LED light manually or automatically; In addition, by providing a voice recognition sensor 70 in addition to the configuration of a plurality of LEDs in the interior of the U-shaped tube tube used in the conventional three-wavelength lamp (Three-wavelength lamp) by the illumination is achieved by Maximizes and minimizes heat release, saves electrical energy, and simultaneously generates OH- in the atmosphere by harmless to the human body by anions and cations output through the ion output unit. Provides air purifier with LED lamp function that has the advantage of sterilizing and purifying substances and quick deodorization to keep indoor air always clean, and