Dust removal equipment

The invention provides dust removal equipment which comprises a first-stage dust removal part and a second-stage dust removal part, wherein the second-stage dust removal part is located on the upper side of the first-stage dust removal part, a dust collection structure is arranged at the junction of the first-stage dust removal part and the second-stage dust removal part, and a cleaning device isarranged in the first-stage dust removal part. The equipment is internally provided with the dust collection device which can collect oil sludge in different dust removal devices together, self-cleaning of the oil sludge in the equipment can be achieved in cooperation a cleaning device, manual cleaning is not required to be conducted , and higher cleaning efficiency is achieved; the equipment is internally provided with a cyclone dust removal part and a wall-collision dust removal part, and after high-temperature pyrolysis coal gas from the reaction kettle passes through the cyclone dust removal part, the gas flow rat