The invention discloses a fire cover. According to the scheme, flame stabilizing fire hole channels communicate with main fire hole channels and do not directly communicate with the interior of a gascavity; according to the function of the flame stabilizing fire hole channels, part of gas entering the main fire hole channels from the gas cavity can flow into the flame stabilizing fire hole channels in a dividing manner, accordingly, on one hand, the gas flow of main fire hole channel outlets can be better reduced, and accordingly the phenomenon of arcing at the main fire hole channel outlet positions is reduced; and on the other hand, during work, flames combusting at the tail ends of the flame stabilizing fire hole channels can pull flames combusting at the main fire hole channel outletpositions, accordingly, the flame stabilizing function is achieved, and the flame stabilizing fire hole channels are good in practicability. In addition, according to the function of an annular groovein the scheme, air supplementing is conveniently conducted on the left side and the right side of each flame stabilizing fire hole channel outlet, the flames at the flame stabilizing fire hole channel outlet positions are better combusted towards the two sides of the annular groove, the transverse width of the stabilized flame fire is increased, and the flames combusting at the main fire hole channel outlet positions are better pulled.