Cabinet and hood type range hood with disassembly-and-disassembly-and-cleaning-free impeller

The utility model relates to a cabinet and hood type range hood with a disassembly-and-cleaning-free impeller, which includes a kitchen cabinet for cooking utensils, an illumination lamp, an oil and smoke hood, a control device, a smoke collection box, an oil collection groove, an oil-filter screen, a blower casing, the impeller and so on. The oil and smoke hood is arranged at the upper part of the range hood, and the kitchen cabinet for cooking utensils is arranged at the lower part; the smoke collection box communicated with a blower in the kitchen cabinet for cooking utensils is arranged in the range hood, and is connected with the oil collection groove; a gas outlet of the smoke collection box is connected with a gas inlet of the blower, and a gas outlet of the blower is connected with a flue; the casing of the blower has a volute or round double-chamber structure; and the impeller has a double impeller structure including an axial single-side opening blade type disc impeller and a bevel wheel shaped impe