The utility model discloses an underground gasification furnace profile which comprises a plurality of gasification unit furnaces, each gasification unit furnace comprises three gas outlet wells, andthe three gas outlet wells extend downwards to a coal seam of a mining area; The three gas outlet wells are arranged in a triangular shape; two gas inlet wells are arranged on the outer sides of the two gas outlet wells at the triangular bottom end; the two gas inlet wells are connected with the two gas outlet wells; wherein two gasification channels on the outer side of the triangular bottom endare formed, an air inlet well is arranged on the outer side of an air outlet well at the triangular top end, the air inlet well is connected with the air outlet well at the triangular top end to forma gasification channel on the outer side of the triangular top end, and the air outlet well at the triangular top end is respectively communicated with the two air outlet wells at the triangular bottom end; According to the utility model, the through connection of a plurality of unit gasifiers is realized without adopting a high-pressure through mode, so that the problems of long reaching production period and unstable operation of the gasifiers in the continuous process are solved.