The invention discloses an agricultural water and soil improvement
irrigation and drainage
system. The agricultural water and soil improvement
irrigation and drainage
system is characterized in that a coarse screen and a fine screen are mounted in a screen well, the fine screen is horizontally mounted in the screen well and covers a rainwater purifying
rubble layer at the bottom, an
aeration regulation
pool, a
hydrolysis acidification
pool and a contact oxidation
pool are serially connected below the rainwater purifying
rubble layer, a steel perforated top plate is arranged at the upper end of a regulation and storage unit, the
aperture ratio of the steel perforated top plate is 60-70%, the
pore diameter is 5-7 mm, a planting pool is arranged at the top of the steel perforated top plate, rainwater infiltrates into the regulation and storage unit via the planting pool to be stored, one side of the regulation and storage unit is connected with a third lift pump through a water conveying
pipe, the water outlet end of the third lift pump is connected with a water outlet through a water conveying
pipe, the water outlet is positioned right above a
water storage tank, and an irrigating layer is mounted in the planting pool, formed by connecting a plurality of
irrigation water pipes through five-way connectors and pre-buried in the planting pool. The agricultural water and soil improvement irrigation and drainage
system realizes efficient utilization of water sources, and meanwhile, realizes rainwater purification, regulation, storage and recycling.