Flue gas desulfurization and dust removal system for graphitization furnace

The invention discloses a flue gas desulfurization and dust removal system for a graphitization furnace, and relates to the technical field of graphite production. Comprising a desulfurization tower, a gas inlet formed in one side of the desulfurization tower, a gas outlet formed in the upper part of the desulfurization tower, a spraying device arranged in the desulfurization tower, a circulating pump device arranged at the bottom of the desulfurization tower and connected with the spraying device, a slurry supply device arranged at the bottom of the desulfurization tower, a gypsum separation device and a nozzle cleaning mechanism, the spraying device comprises a spraying pipe and a nozzle arranged on the spraying pipe, the nozzle cleaning mechanism is arranged on the lower portion of the nozzle, the nozzle cleaning mechanism comprises a nozzle opening dredging piece, and the nozzle opening dredging piece can be inserted into or separated from the nozzle. The nozzle opening dredging piece is used for cleaning