The invention provides a specific technical scheme of a dust removal device. The device is characterized by comprising an
air channel, a dust removal chamber and an exhaust channel, wherein a plurality of hollow partition boards are arranged in the
air channel; the dust removal chamber comprises a first dust removal channel, a second dust removal channel, a grid plate, a first dust removal box anda second dust accumulation box; a
sewage tank is arranged at the lower parts of the first dust removal box and the second dust accumulation box; a
water circulation device is arranged at the lower part of the
sewage box; a power generation device is arranged in the exhaust channel, and a draft fan is arranged at an outlet end of the exhaust channel. The dust removal device is reasonable and novelin structure design, dust-containing
airflow is gradually filtered, and the
filtration efficiency is improved; besides, an ash removal device and a spraying device are arranged in the dust removal channel, cleaning of a filter net is completed without stopping of the device, and the maintenance cost is reduced; the
water circulation device is arranged at the lower part of the dust removal chamber, and reutilization of
sewage is realized; the power generation device is arranged in the exhaust channel, air power after purification is sufficiently utilized to realize conversion of
electric energy, energy is saved, and the production cost is saved.