The invention provides a quantitative water outlet irrigator which comprises a
bottle cleaning
nozzle, a plastic hose, a fixing support column, a case,
brake pads, rollers, a multifunctional
observable filtering water tank structure, a
water supply bag, a multifunctional clamping plate structure, a water pump, a shell, a water inlet connecting tube and an elastic
rope, wherein the
bottle cleaningnozzle is connected with the upper end of the plastic hose; the fixing support column is fixed at the upper end of the case through a bolt; the
brake pads are mounted at the upper parts of the rollersthrough bolts; the multifunctional
observable filtering water tank structure is mounted at the upper end of the interior of the multifunctional clamping plate structure; the multifunctional clampingplate structure is mounted at the front part of the interior of the case; and the rollers are mounted at four corners at the lower part of the case. Due to arrangement of middle and upper layer clamping plates, an inserting rod, a through hole, a fixing screw nut and a lower layer clamping plate, tools can be stored, and convenience can be brought to users to use the quantitative water outlet irrigator; and due to arrangement of a lifting
handle, a water tank, a filtering net and a water amount observation window, weeds can be filtered, and the
nozzle can be prevented from being blocked.