An unmanned aerial vehicle (10) jettisoning farmland. The UAV (10) has a liquid repository (20),A liquid jet gun (30) and a plurality of rotary shovels (40). Liquid storage is configured to store a liquid product that must be used in agriculture. The liquid spray gun keeps liquid communication with the liquid reservoir, which is used to spray liquid products and transport them to farmland. The liquid jet gun has a jet axis, which extends to the opposite direction of the liquid jet gun, so that the liquid products of the jet gun are in a dangerous state.At first, it is mainly around the jet axis； multiple rotating cylinder arrays are connected with a corresponding multiple emission axis (50). The first propagation axis (51) of the propagation axis diversification has a first driving axis longitudinally diffused through the first propagation axis, and the configuration of the axis is at the first angle of the injection axis. Transmission,It has a second drive shaft which extends longitudinally through the second drive shaft. The second drive shaft is configured at the second angle of the injection shaft. The first drive shaft and the second drive shaft are basically in the same first to second plane. The first angle extends from the first direction of the jet axis, and the second angle extends from the second direction of the jet axis.Therefore, at least a part of the liquid product ejected by the jet gun is discharged downward through the thrust rod of the first batch drum connected with the first transmission shaft, and the thrust rod of the second batch drum is discharged downward. Multiple rotor blades connected to the second transfer shaftUn vehículo aéreo no tripulado (10) para pulverizar un campo agrícola. El UAV (10) tiene un depósito de líquido (20), una pistola pulverizadora de líquido (30) y una pluralidad de conjuntos de palas de rotor (40). El depósito de líquido está configurado para contener un producto líquido que debe aplicarse a un campo agrícola. La
