PROBLEM TO BE SOLVED: To provide a paddy work machine in which the blower and the intake duct can be easily assembled while suppressing the energy loss of the fluid flowing through the intake duct. A driving unit step 3 includes a main step unit 3B and a rear step unit 3C located on a rear side including a lateral side of a driving seat, and supplies a granular material to a field. The device 4 is provided above the rear step portion 3C, and the powdery- or granular-material supplying device 4 includes a blower 5 that generates a transporting air, a guide portion 42 that transports and guides the powdery or granular material by the transporting air, and an intake portion of the blower 5. The blower 5 is provided with an intake duct 54 for supplying air for conveyance, the intake part 52 of the blower 5 is located rearward of the rear step part 3C in the vehicle front-rear direction, and the intake duct 54 is connected to the intake part 52. The first duct 55 is provided from the portion toward the front of the machine body and is inclined forward and downward below the rear step portion 3C from the connection portion, and the second duct 56 is provided along the lower surface of the main step portion 3B. .. [Selection diagram] Fig. 4【課題】吸気ダクトを流れる流体のエネルギー損失を抑制しつつ、ブロワ及び吸気ダクトの組み付けが容易な水田作業機を提供する。【解決手段】運転部ステップ３は、メインステップ部３Ｂと、運転座席の横側脇を含む後方側に位置するリアステップ部３Ｃと、を備え、粉粒体を圃場に供給する粉粒体供給装置４がリアステップ部３Ｃの上方に備えられ、粉粒体供給装置４は、搬送風を生起するブロワ５と、搬送風により粉粒体を搬送案内する案内部４２と、ブロワ５の吸気部５２に搬送用空気を供給する吸気ダクト５４とを備え、ブロワ５の吸気部５２は、リアステップ部３Ｃよりも機体前後方向の後方側に位置し、吸気ダクト５４は、吸気部５２との接続部分から機体前方に向けて設けられ、当該接続部分からリアステップ部３Ｃの下方において前下がりに傾斜する第１ダクト５５と、メインステップ部３Ｂの下面に沿う第２ダクト５６とによって構成されている。【選択図】図４
