The present invention relates to a suction net apparatus for spraying agricultural chemicals, capable of having improved agitating ability through simple installation. The suction net apparatus for spraying agricultural chemicals, comprises: a lower case formed in a ring shape and having a plurality of separate protrusions extended below； a pair of supports provided in a dome shape inside the lower case, wherein each of the supports has dome shapes formed above and below and includes a plurality of penetration holes penetrating the inside thereof； filters formed above and below the supports in a net shape, respectively, wherein each of the filters is provided to wrap upper and lower portions of the support； an upper case provided in a ring shape above the filters and coupled with the lower case, wherein the upper case includes a plurality of vortex protrusions formed outwards, nozzle coupling holes penetrating one side of each of the vortex protrusions, a depressed insertion groove formed inside the ring shape to be connected to the nozzle coupling holes, an inflow hole vertically penetrating above the insertion groove to be connected with the insertion groove, a ring-shaped inflow port formed in the inside separated from the ring shape and separated from the upper side, and a plurality of support elements extended in a radial shape outside the inflow port； an internal case fitted inside the insertion groove of the upper case while being formed in a shape in which the inside is penetrated, wherein the internal case includes inflow protrusions formed on an upper, having a penetrated inside, and protruding upwards to be fitted to the inflow hole, a plurality of protrusions protruding corresponding to the vortex protrusions in a radial type outside, and nozzle mount elements formed on one side of the protrusion net, and protruding corresponding to the nozzle coupling holes； and an outflow pipe provided to pass through the inflow port of the upper case, and coupled with
