The utility model discloses an anticorrosive, telescopic pressure reduction adjustment valve of anti -soil axial compressor, including the valve body, be equipped with entry and export on the valve body, overlap on the valve body inner wall in exit and be equipped with the disk seat gland, the valve body in be equipped with rack and pinion coating unit and sleeve sealing unit, be connected with the actuating lever linkage unit on the valve body, the actuating lever linkage unit be connected with the executor, the utility model discloses a carried out the cladding with gear and rack by enclosed cavity in the rack support section of thick bamboo and the formation of valve rod gland, make the rack and pinion on actuating lever and the case pull rod completely contact with the medium, overcome the shortcoming that conventional rack and pinion transmission can not be used for corroding and having solid particle medium occasion. The valve runner adopts the axial symmetry runner, has avoided indirect stream and flow direction unnecessary to change, and furthest has improved the negotiability on the unit diameter, greatly reduced noise and turbulent formation to prevent that the untreated fluid in the upper reaches from corroding the valve.