A hot-melt glass pillar lamp and a multi-channel heat dissipation method thereof; the pillar lamp comprises a base, a hollow steel frame which is mounted on the middle of the base, several sections of pillar-shaped hot-melt glass lamp which surround the steel frame and are sequentially arranged on the base from down to up in an overlapping manner, and a lamp cover with air outlets, wherein, each section of the pillar-shaped hot-melt glass lamp comprises a fixing framework which is composed of a plurality of supporting bars and a supporting board; each surface of the fixing framework is separately provided with a hot-melt glass lamp plate; an LED lamp plate is arranged at a certain distance from the inner side of each hot-melt glass lamp plate, and on the corresponding surface of the steel frame. The present invention integrates the semiconductor lighting and the crystal optical refraction technologies, has ideal lighting effect and landscape ornament effect; and the pillar lamp is internally provided with at least one air convection channel from down to up, thereby being greatly convenient for the air convection heat dissipation of the power part and the luminous body in the pillar lamp, ensuring a long-term safe use, and meeting the decorative lighting demands of modern high grade buildings.