The utility model discloses an integrated device applied to black and odorous water body treatment. Relating to the technical field of water purification, the integrated device is applied to black andodorous water body treatment. The device comprises a water inlet tank, one side of the water inlet tank is fixedly connected with an ozone pipe, the end, away from the water inlet tank, of the ozonepipe is fixedly connected with an ozone generator, a partition plate is arranged in the water inlet tank, impurity filtering layers are arranged at the positions, located on the two sides of the partition plate, in the water inlet tank, and the other side of the water inlet tank is fixedly connected with a settling tank connecting pipe. The integrated device applied to treatment of the black and odorous water body is simple in structure; through the arrangement of the impurity filtering layers, insoluble impurities in the black and odorous water are filtered, in addition, the impurity filtering layers are arranged on the two sides of the partition plate, the black and odorous water is filtered in an overflow mode, the filtering effect is better, and through the arrangement of the ozone generator, decoloration and deodorization treatment on the black and odorous water is achieved through the strong oxidizing property of ozone.