The utility model discloses a lifting type internal circulation range hood which comprises a
machine shell, a
smoke collecting cavity is formed in the
machine shell, an opening communicated with the
smoke collecting cavity is formed in the upper portion of the
machine shell, and an air outlet communicated with the
smoke collecting cavity is formed in the side face of the machine shell. The range hood further comprises a fume collecting hood arranged in the fume collecting cavity, a wind wheel
assembly is arranged in the fume collecting hood, the fume inlet end of the fume collecting hood communicates with the fume collecting cavity, and the fume exhaust end of the fume collecting hood communicates with the exhaust outlet; a purification
assembly is arranged between the exhaust fume collecting hood and the exhaust outlet; the purification
assembly is sequentially provided with an oil-smoke separation layer, an oil filtering layer and a smoke filtering and
odor removing layer from the smoke exhaust end of the smoke collecting hood to the exhaust outlet; the range hood further comprises a smoke collecting box body arranged at the opening in a lifting mode, a smoke sucking opening communicated with the smoke collecting cavity is formed in the smoke collecting box body, and a lifting driving mechanism and a lifting guiding mechanism are arranged between the smoke collecting box body and the machine shell. According to the utility model, internal circulation pipeline-free purification and
odor removal can be carried out on oil smoke, the purification is efficient and reliable, and the complexity and limitation caused by pipeline installation are avoided; and the whole smoke collecting box body is stable and smooth in lifting.