Assembly type rainwater purification device

The utility model relates to the technical field of rainwater purification, in particular to an assembly type rainwater purification device, which comprises a primary purifier, a secondary purifier, a secondary purifier, a secondary purifier, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe, and the primary purifier is provided with a floater removal cavity and a gravity removal cavity which are communicated with each other; the high-efficiency filter is communicated with the primary purifier, and the water enters the high-efficiency filter to form rotational flow, so that impurities and dirt in the water flow are concentrated and precipitated; and the filtering assembly is arranged in the high-efficiency filter and is used for filtering the rainwater entering the high-efficiency filter. According to the assembly type rainwater purification device provided by the embodiment of the utility model, the sewage purification capacity is improved through the primary purifier, large