The invention discloses a multi-fuel and clean-combustion kitchen-work heating stove which comprises a stove body and a chimney. A hearth is disposed in the stove body. The hearth is separated into a vaporizing chamber and a combustion chamber from top to bottom. A reverse combustion fire passing passage is arranged on one side in the combustion chamber. The chimney is communicated with the vaporizing chamber. The upper gas outlet of the reverse combustion fire passing passage is communicated with the chimney through the vaporizing chamber. The lower gas inlet of the reverse combustion fire passing passage is arranged in the middle lower portion of the combustion chamber. A switching plate is disposed at the gas outlet of the reverse combustion fire passing passage. The chimney can be communicated with the vaporizing chamber or the reverse combustion fire passing passage through the switching plate. The multi-fuel and clean-combustion kitchen-work heating stove has the advantages that the stove is simple in structure and simple to operate during heating and kitchen-work fire banking, the stove can meet the requirements of national environment protection standards under the normal combustion state and the fire banking state, smoke-free emission is achieved, and the emission concentration of PM10 and PM2.5 is lowered.