The utility model provides a dedusting and demisting device. The dedusting and demisting device comprises dedusting equipment and demisting equipment, the dust removal equipment comprises a shell, a filtering piece and a pulse air cannon. The shell is provided with an inlet and an outlet which are communicated with the interior of the shell, and the outlet is located above the inlet. The periphery of the filtering part is connected with the inner
peripheral wall of the shell, and the filtering part is located between the inlet and the outlet and used for filtering particle impurities. The pulse air cannon communicates with the interior of the shell and is used for conveying pulse air into the shell to purge the filtering piece so as to achieve cleaning of the filtering piece. The demisting equipment comprises a shell, a spraying mechanism and a
demister, the shell is provided with an inlet and a
discharge outlet which are communicated with the interior of the shell, the inlet is communicated with the outlet of the shell, and the
discharge outlet is located above the inlet. And the spraying mechanism is communicated with the interior of the shell and is used for spraying washing liquid into the shell so as to remove impurities such as sulfides and the like. The
demister is located between the inlet and the
discharge outlet, the periphery of the
demister is connected with the inner circumferential wall of the shell, and the demister is used for eliminating mist.