NOVELTY - A quick and large-scale production of bio-fuel comprises adding biological material into a distilling and dry-distilling and carbonizing chamber from a material inlet to complete heat exchange in the absence of air under the condition that the best positive-negative pressure of the dry-distilling and carbonizing chamber is zero and the environment is isolated from air, and successively discharging the two produced bio-fuels which are biomass thermal cracking gas and biomass semicoke.    USE - Method of quick and large-scale production of bio-fuel (claimed).    ADVANTAGE - The method can be applied to carbonization process of other form coke semi-finished products and carbon semi-finished products which need heating in the absence of air.    DETAILED DESCRIPTION - A quick and large-scale production of bio-fuel comprises:    (A) using a device comprising a high-temperature gas medium collection chamber, a compulsory stirring fan, a fan deflector, a heating chamber, circulatory heating pipes of thermal cracking gas, a combustor, a afterheat utilizing device, a thermal cracking gas outlet, a lower waste-smoke outlet, a material inlet, a carbonized product outlet, a dry-distilling and carbonizing chamber, a shell and an insulating layer;    (B) using the thermal cracking gas produced by carbonized biological material as energy-carrying working medium, placing the working medium into the circulatory heating pipes of thermal cracking gas in the heating chamber, compulsively heating to a certain temperature, and executing internal circulation using the compulsory stirring fan; and    (C) adding biological material into the distilling and dry-distilling and carbonizing chamber from the material inlet to finish heat exchange in the absence of air under the condition that the best positive-negative pressure of the dry-distilling and carbonizing chamber is zero and the environment is isolated from air, and successively discharging the two produced bio-fuels which are biomass thermal cracking gas and biomass semicoke.