An apparatus that uses air-laid paper-making process to produce reconstituted tobacco, comprising a fiberizer, a base-sheet forming device, a pulp sizing device and a drying device connected in series, wherein the fiberizer comprises a rough crusher, a fine crusher, a fiber storage tank and a fiber calculator connected in series, a material inlet is arranged at a front end of the rough crusher, and a material outlet of the fiber calculator is connected to the base-sheet forming device of the apparatus, the fiberizer further comprises an anti-static humidifying device, the anti-static humidifying device comprises a high-moisture air generator and high-moisture air pipelines, an output terminal of the high-moisture air generator is connected to the material inlet of the rough crusher and the material outlet of the fiber calculator via the high-moisture air pipelines respectively; the base-sheet forming device comprises forming mesh belts, a mesh belt conveying device, a base-sheet forming device rack arranged above the forming mesh belts, one or more sets of forming heads are arranged inside the base-sheet forming device rack, a blow-off device is provided in the forming head, a negative pressure device is arranged underneath the forming mesh belts to protect base sheets from tilting and pulp from spilling when sizing, such that the sizing agents can easily penetrate the base sheets, a first screen cylinder and a second screen cylinder are arranged symmetrically to each other in each set of forming head, a first fiber conveying pipeline and a second fiber conveying pipeline are arranged along an axial direction of the first screen cylinder, a third fiber conveying pipeline and a fourth fiber conveying pipeline are arranged along an axial direction of the second screen cylinder, the first fiber conveying pipeline and the second fiber conveying pipeline are arranged symmetrically in an upper part of the first screen cylinder, the third fiber conveying pipeline and the fourth fiber conveying pipeline are arranged symmetrically in an upper part of the second screen cylinder, a first breaking roller and a second breaking roller are arranged in a lower part of the first screen cylinder and a lower part of the second screen cylinder respectively, the first breaking roller and the second breaking roller are located exactly under center points of the first screen cylinder and the second screen cylinder respectively, a front circular passage and a rear circular passage communicating internal spaces of the first screen cylinder and the second screen cylinder are arranged at front sides and rear sides thereof respectively; the pulp sizing device comprises a constant pressurized storage tank and a pulp distributor connected to a material outlet of the constant pressurized storage tank, the pulp distributor has multiple pulp outlets, each being connected to a pulp buffer via a proportioning pump, the pulp buffer is connected to a pulp inlet of a dual spray nozzle via a check valve, the dual spray nozzle is further equipped with a compressed air inlet, a compressed air regulating valve is connected to the compressed air inlet through a pipeline, the pulp sizing device further comprises a sizing device rack arranged on the mesh belt, installation boxes are arranged on both sides of the sizing device rack, the pulp distributor and the proportioning pump are installed inside the installation boxes, the pulp buffer is installed on a pulp buffer supporting rack located in the middle of the sizing device rack, a nozzle supporting rack is arranged in the middle of the sizing device rack, a plurality of nozzle supporting racks with adjustable lengths and angles are arranged on the nozzle supporting rack, dual spray nozzles are installed on the nozzle supporting racks; the drying device comprises a drying device body and a hot-air inlet connected to the drying device body, wherein three fixed dampers of a first damper, a second damper and a third damper are arranged in the drying device body, the three fixed dampers are arranged parallel to each other and distances between two neighboring dampers are equal to each other, the three fixed dampers are arranged in the drying device body and connected to the hot-air inlet, an adjustable baffle is arranged at a tail end of each damper, and a moisture-discharging device is arranged at a rear end of the drying device body.