The utility model relates to a do benefit to radiating transformer coil structure, including twining low voltage coil and the high -pressure coil on coil skeleton in proper order, be equipped with the insulating cylinder between high -pressure coil and the low voltage coil, be equipped with annular heat abstractor between insulating cylinder and the low voltage coil, annular heat abstractor including connecting gradually heat dissipation air flue board together, the outsourcing of heat dissipation air flue board is equipped with the separation membrance, the separation membrance outsourcing is equipped with glass cloth tape, the pouring has the epoxy layer between annular heat abstractor and the low voltage coil, both ends are vertical about the low voltage coil inherence is equipped with air channel in a plurality of rectangles, both ends are vertical about the low voltage coil inherence is equipped with air channel in a plurality of fan annulars, the radius of width and fan air channel in the annular of air channel equals in the rectangle. The beneficial effects of the utility model are that: heat abstractor's length and radian can be adjusted wantonly as required, and application scope is wide, the radiating effect is good, insulate, anti short circuit ability reinforce, stability and unity when having guaranteed the coil wire winding.