Low heat value gas burning dispersing device

The utility model which relates to a low heat value gas combustion and emanation device is used to solve the problem of the low heat value gas combustion. The utility model comprises a main burning cylinder (2), a igniter device (4), a distributor (3), a burning companion looping pipe (5) and a fuel gas pipe (8); the distributor (3) is arranged in the main burning cylinder (2), of which can lead emanation gas into the fire mad by the burning companion looping pipe (5) and the main burning cylinder (2); the burning companion looping pipe (5) is arranged at the outer ring of the cylinder port of the main burning cylinder (2), and the fuel gas pipe (8) is arranged along with the circumferential direction and is communicated with the burning companion looping pipe (5) which is communicated with an air supply through the fuel gas pipe (8); the igniter device (4) is arranged at the outside of the burning companion looping pipe (5); a high heat value gas goes into the burning companion looping pipe (5) and burns through the fuel gas pipe (8) and the low heat value emanation gas is introduced into the burned stable fire, of which can make abundant low heat value emanation gas burn fully, and the utility model has the advantages of fully, good, energy- saving burn.