The present invention relates to an eco-friendly indoor air purifying device, and more particularly, by composing soil, water, plants, etc., which are nature-friendly elements, as purification means, simplifying the device configuration and providing fresh oxygen through sunlight and photosynthesis of herbal plants. It relates to an eco-friendly indoor air purification device that can provide a comfortable indoor environment through supply. To this end, an inlet through which the indoor air is introduced and an intermediate passage through which the indoor air is discharged are formed on one side and the other side, respectively, the first chamber forming a collecting space for collecting water; A purification space through which the indoor air discharged through the intermediate passage of the first chamber is introduced and an outlet, which is a passage through which the air of the purification space is discharged into the room, is formed in the second chamber in which soil is built and plants are grown. ; and a pumping means for pumping water from the first chamber and supplying it to the second chamber, wherein a plurality of collecting spaces are partitioned in the first chamber in a direction from the inlet to the intermediate passage, but are installed so as not to be submerged in the collected water. A scattering pinwheel is installed in the water collecting space between the bulkhead and the plurality of bulkheads and rotates to collect harmful substances contained in indoor air passing through the water collecting space through water particles generated by scattering the collected water. It provides an eco-friendly indoor air purification device, characterized in that it is installed.
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