Construction device and construction method of inspection well

The invention relates to a construction device and a construction method of an inspection well. The construction method comprises the following steps: construction preparation; constructing a shaft bottom chute and a base; brick voucher issuing construction, wherein bricks are rapidly placed, and an outer mold is filled and sealed; assembling the section assembling type outer mold; assembling a telescopic inner support frame; the inner mold and the mortar plastering device are assembled; the outer mold and the inner mold are hoisted in place; pouring a well body of the inspection well; and the next section is constructed until the well body is poured. The construction method has the beneficial effects that the extension length of the telescopic screw rod is adjusted through the telescopic jack, fixation of the circulating lifting inner supporting type inner mold and the segment assembly type outer mold is achieved, rigidity improvement of the circulating lifting inner supporting type inner mold is achieved, f