Marine filtering device

The utility model is applicable to the technical field of ships, and provides a marine filtering device which comprises a treatment box, a partition plate I is horizontally mounted in the treatment box, a partition plate II is arranged below the partition plate I, the space in the treatment box is divided into a driving cavity, a treatment cavity and a liquid discharge cavity by the partition plate I and the partition plate II, and a stirring mechanism is arranged in the treatment cavity. A driving mechanism is arranged in the driving cavity, a filtering mechanism is arranged below the treatment box, and a feeding pipe is vertically arranged in the driving cavity; the stirring mechanism comprises a first stirring shaft, the first stirring shaft is located in the treatment cavity, a second stirring shaft is arranged on one side of the first stirring shaft, and the reaction rate of the flocculating agent and the sewage can be increased through the first stirring shaft and the second stirring shaft in the stirri