The invention discloses wastewater recovery and secondary utilization equipment used for a chemical plant. A structure of the wastewater recovery and secondary utilization equipment used for the chemical plant comprises wastewater treatment equipment, handles, a supporting frame, a water discharge pipe, an electric controller and a water inlet pipe, wherein through a sedimentation chamber, first-step precipitation treatment is conducted on chemical wastewater, impurities in the chemical wastewater precipitate, then by means of a stopping screen board and a second filtering screen board, the impurities are isolated and filtered, through a particle collecting turbine, particle treatment is conducted on the wastewater in a filtering chamber, thus a water vapor biofilm obtains full exchange, organic matters in the wastewater are efficiently treated, moreover, by means of a sub-atmospheric pressure aeration mechanism, external oxygen is introduced into the wastewater, moreover, through backwater mechanisms, the wastewater is stirred, contact of organic matters, microorganisms and dissolved oxygen in the filtering chamber is enhanced, the organic matters in the wastewater is subjected tooxygenolysis, treatment of the chemical wastewater is improved, and the structure is low in cost and suitable for use and popularization.