The utility model discloses a gasifier high temperature coal gas exports connection structure, including flange, radiating fin, head, seamless steel pipe, insulation material, seamless steel pipe directly passes the flange and to the equipment inside, fills insulation material between flange and the seamless steel pipe, and it is sealed that insulation material passes through the head, evenly laysa plurality of radiating fin outside flange, the head. The utility model discloses an outside equipartition several radiating fin of flange and head, radiating fin has increased heat radiating area,has reduced the the outer surface temperature of flange and head. The flange reachs flange outer wall with the middle space fill insulant material of seamless steel pipe in order to reduce inside airsupply heat, and the flange material uses the stainless steel just can meet the demands the cost is reduced. Only needing the inside refractory material of use of seamless steel pipe, having avoided and located to use casting material at the mouth of pipe, avoid the refractory material of pipeline oral area position the crackle usually to appear, peel off, peel off with inside emergence of gasifier, cause the super temperature in mouth of pipe position, the situation that influences the normal operating of gasifier takes place.