PURPOSE: A water purifying flowerpot is provided to use an oxidation catalyst layer on the inner surface or the outer surface of a flowerpot body, and a microorganism habitat fixed to the outside of a cultivation space for purifying water. CONSTITUTION: A water purifying flowerpot(100) comprises the following: a flowerpot body(110) including a bottom unit(113) and side walls(111a,111b) extended from the bottom unit; plural first openings(111c) connecting the cultivation space to the exterior, formed on the side walls; a buoyancy member(120) and a light source(150) combined with the flowerpot body; a weight centering unit(130) for holding the centroid of the flowerpot; a fixing member(133) installed in the inside of the cultivation space; a central weight member(130) located on the outside of the cultivation space; and a connection member(132) including a lower end penetrating a combining hole to be coupled with a fixing member.
