A zero pollution recovery system for recovering fluorine hydride safely in the production of anhydrous fluorine hydride, said system comprising: a compartment, a reactor disposed in the compartment for producing fluorine hydride, the reactor comprising two ends through which fluorine hydride-containing gas can exit, a water pool disposed at the bottom of the compartment; wherein both sides of the compartment are symmetrically provided with an air inlet for introducing air from outside; two absorption hoods are arranged above the two ends of the reactor respectively for absorbing the fluorine hydride-containing gas; at least two absorption towers are arranged above the compartment and connected in series via pipes for conveying the fluorine hydride-containing gas between the neighboring absorption towers; and the series of absorption towers are connected to said two absorption hoods via two conduits respectively such that the absorption hoods can suck the fluorine hydride-containing gas exiting from the reactor into the absorption towers; water pipes are provided to connect each of the absorption towers to the water pool, wherein at the top of each of the absorption towers a water pipe is arranged to provide water for spraying onto the fluorine hydride-containing gas inside the absorption tower, wherein at the bottom of each of the absorption towers another water pipe is arranged to flow the water with the absorbed fluorine hydride into the water pool; coolers are arranged on the fluorine hydride-containing gas pipes connecting the absorption towers for lowering the temperature of the fluorine hydride in the absorption towers; and a receiver is disposed in the absorption towers so that the hydrofluoric acid absorbed by the absorption towers and cooled by the coolers can be flowed into the water pool. a compartment, a reactor disposed in the compartment for producing fluorine hydride, the reactor comprising two ends through which fluorine hydride-containing gas can exit, a water pool disposed at the bottom of the compartment; both sides of the compartment are symmetrically provided with an air inlet for introducing air from outside; two absorption hoods are arranged above the two ends of the reactor respectively for absorbing the fluorine hydride-containing gas; at least two absorption towers are arranged above the compartment and connected in series via pipes for conveying the fluorine hydride-containing gas between the neighboring absorption towers; and the series of absorption towers are connected to said two absorption hoods via two conduits respectively such that the absorption hoods can suck the fluorine hydride-containing gas exiting from the reactor into the absorption towers; water pipes are provided to connect each of the absorption towers to the water pool, wherein at the top of each of the absorption towers a water pipe is arranged to provide water for spraying onto the fluorine hydride-containing gas inside the absorption tower, wherein at the bottom of each of the absorption towers another water pipe is arranged to flow the water with the absorbed fluorine hydride into the water pool; coolers are arranged on the fluorine hydride-containing gas pipes connecting the absorption towers for lowering the temperature of the fluorine hydride in the absorption towers; and a receiver is disposed in the absorption towers so that the hydrofluoric acid absorbed by the absorption towers and cooled by the coolers can be flowed into the water pool.