Float bed type water purifying biological reactor

A float bed type water purifying biological reactor belonging to water treatment field provides a novel method for improving water quality of polluted water body, which comprises a float bed, a planting pot and a fixing device and is characterized in that: the float bed which comprises a float rack, a netting and hydrophilic cloth can increase oxygen supply of plant root and except for planting aquatic plant, is particularly suitable for planting non-aquatic plant; the planting pot is provided with a pot ear and a card with fixing function to realize simple and easy operation during planting and picking. The utility model is suitable for water quality improvement and water environment treatment of polluted water bodies such as lake, reservoir and river and can quickly remove pollutant in water body and improves self-purification capability of water body, thereby being a novel device for water treatment with simple structure, convenient and quick operation, low cost, high efficiency and capable of realizing resource recovery and industrialization; meanwhile, the utility model possesses multifunction such as purification of polluted water body, alga blocking and inhibition, wave dissipation, landscape beautifying and ecologic restoration etc.