Scale depositing disc and dusty gas purification device

The invention discloses a scale depositing disc and a dusty gas purification device, the scale depositing disc comprises a tower tray plate and a scale depositing device arranged on the tower tray plate, and the scale depositing device comprises a gas collecting cylinder and a baffling disc arranged on the outer cylinder wall of the gas collecting cylinder. The dust-containing gas purification device comprises an upper sealing head, a lower sealing head and a cylinder body, and a scale depositing disc, optional dust removal filler and an optional protective agent bed layer are arranged in the device. According to the purification device, the blocking and flow equalizing assembly is arranged, the adhesion and aggregation of dust are utilized, a flow field flow state suitable for dust adhesion and aggregation is constructed, solid dust particles in dust-containing gas are intercepted and stored in a graded mode, effective purification treatment of the dust-containing gas is achieved, and the purification device