The invention belongs to the technical field of biomass heat conversion, and particularly relates to equipment and a process for carbonizing, activating, pyrolysis gasification, catalytic cracking of a plurality of product roads. The equipment comprises a flue pipe, an activator (gasifying agent) inlet, an auxiliary activator (gasifying agent) inlet, a feeding hole, a feeding cover seal, a forced blanking shoveling board, a gear, a drive and transmission case, heat-insulating cotton, a riding wheel, a barrel angle adjusting bolt, a temperature measuring device, a combustion channel, a product channel, an angle adjusting screw, a discharge cover seal, a lighting-up tuyere, an explosion-proof opening, a combustion-supporting opening (viewing port), a discharge sealing valve and a discharge cooler. According to the invention, the multifunctional biomass heat conversion equipment simultaneously has the functions of carbonizing, activating, pyrolysis gasification, catalytic cracking by changing an inclination angle, a rotating speed and a sealing mode; a traditional direct combustion method is changed into a bolometric method, and the problems of low yield, serious ignition loss, non-uniform reaction, small yield, large consumption and temperature control difficulty in the biomass heat conversion process are solved from the technical aspect.