Heat conduction device of LED lamp

The utility model belongs to the technical field of LED lamp heat dissipation, and particularly relates to a heat conduction device of an LED lamp for LED heat dissipation. A heat conduction device of an LED lamp comprises a heat conduction base, a heat exchanger fixed to the upper end face of the heat conduction base, a fan fixing base fixed to the outer circumference of the heat exchanger and a fan fixed to the fan fixing base. The lower end face of the heat conduction base is provided with a plurality of transverse grooves and longitudinal grooves. The heat exchanger comprises an outer-layer heat conduction cylinder of a cylindrical structure and a heat conduction column vertically arranged in the outer-layer heat conduction cylinder, heat dissipation fins are arranged on the outer circumference of the outer-layer heat conduction cylinder, and a plurality of heat dissipation fins are vertically arranged on the outer circumference of the heat conduction column. And a plurality of air outlet through holes pe