The present invention is characterized in that it comprises a porthole block 30 installed at the upper part of a pedestrian road, a sand layer and a gravel layer sequentially installed below the permeable block 30, a collecting tank 20 installed at one side below the gravel layer, An underwater pump 40 installed inside the center of the water collecting tank 20, an underwater pump connecting pipe 41 connected to the water pump 40 and extending upward, A supply tank 10 installed on the upper part of the water collecting tank 20 and connected to the upper part of the pedestrian road by a water pump connecting supply pipe 41 and a solar battery 10 installed on the upper part of the supply tank 10, (1) and a battery (2) A rail railing frame 100 and a railing frame 110 which are installed on one side surface of the supply tank 10 and emit rainwater, A spray pipe 70 connected to the lower end of the discharge pipe 51 and installed in the inside of the flower beds 200 and 300, The spray pipe (70) is provided with a wick (71) having a plurality of through holes and inserted in the respective holes, A spraying pipe 70 installed at a lower portion of the spraying pipe 70, and flower-making units 200 and 300 composed of plants planted in the soil installed above the spraying pipe 70, The supply tank 10 is installed at an upper portion of one side of a pedestrian's road, and a solar panel 1 and a battery 2 are installed at an upper portion, A submerged pump connection pipe 41 provided in the upper part of the inside of the supply tank 10 and passing through the supply tank lower part 18 and a supply pipe 19 )Wow, A water level sensor 12 provided inside the supply tank 10, And an exhaust pipe (50) provided on one side of the supply tank (10).
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