Series type internal circulation Fenton fluidized-bed oxidizing tower

The invention discloses a series type internal circulation Fenton fluidized-bed oxidizing tower. The oxidizing tower comprises two series type internal circulation Fenton fluidized-bed pipe column main bodies. Each series type internal circulation Fenton fluidized-bed pipe column main body is internally provided with a circulating water-distribution area, a Fe fluidized reaction area, a reaction filtering area and a reaction termination area from bottom to top. The oxidizing tower disclosed by the invention has the advantages that two Fenton fluidized-bed oxidizing towers are innovatively connected in series and are combined with internal circulation process, the addition of Fe is reduced, and residual H2O2 is fully utilized, so that the cost of iron-containing sludge in the following treatment is reduced and the removing efficiency of COD is increased.