The subject of the invention is a processing device for granulating and coating of solid particles. The present invention refers to a technical field of particle coating, especially to a field of devices for spraying a coating liquid or suspension into a fluidised layer of particles. A processing device for granulating and coating of solid particles, where the device (1) has a processing medium distribution panel (4) arranged inside a wall (2), through which distribution panel (4) at least one nozzle (15) for atomising the liquid for coating or granulating is arranged, wherein under said distribution panel (4) there is a housing (3), which serves to supply a processing medium (5) through the distribution panel (4) into the area above the distribution panel (4), wherein the nozzle (15) for atomisation of the solution is designed in a way that part of the processing medium (5) is taken from the area below the distribution panel (4) and conducted to the area above the distribution panel (4) through a channel (12) that embraces the nozzle (15) concentrically and in the same flow direction with respect to a sprayed solution (7).