Kiln with heat recovery function and process thereof

The invention provides a kiln with a heat recovery function and a process thereof, and belongs to the field of kiln heat recovery equipment cleaning, the kiln with the heat recovery function comprise a kiln body and a combustion-supporting assembly, the kiln body is provided with a firing mechanism and a chimney, the firing mechanism comprises an outer cover, a firing area and an ash removal area, the combustion-supporting assembly comprises an outer box, a ceramic heat exchanger, a draught fan and an air outlet head, the upper portion of the outer box is communicated with a second flue, the outer box communicates with a first flue, the ceramic heat exchanger is located in the outer box, the air outlet end of the ceramic heat exchanger communicates with the air outlet head, and the air outlet head is arranged in the ash removal area. In the whole using process, heat lost by the first flue is recycled and reused, meanwhile, the recycled heat is used for heating air, combustion supporting of fuel is implemented