Organic waste gas biological treatment device

The utility model discloses an organic waste gas biological treatment device, which belongs to the technical field of organic waste gas treatment equipment, and comprises a treatment box body and an oxidation reaction tower, a partition plate I and a partition plate II are arranged in the treatment box body, and the inside of the treatment box body is divided into a dust removal area, a trickling filtration area and a decomposition area by the partition plate I and the partition plate II; the dust removal area is communicated with the decomposition area through the trickling filtration area; the dust removal area is connected with an air inlet pipe, the decomposition area is connected with an oxidation reaction tower through an air outlet pipe, and an exhaust port is formed in the top of the oxidation reaction tower; a first spraying device is arranged in the trickling filtration area, and a biological filler layer is arranged below the first spraying device; a second spraying device is arranged in the decomp