Multifunctional drone for indoor or outdoor use, and comprises air purifier is an air filtration filter or a wind duct installed before and after the propeller tracking system, for at least one user, includes an obstacle detector comprising of a meter configured to provide FCS (Flight Control System) information for flying the drone in standby mode over a human settlement, where the meter comprises at least one of the sensors selected from an image sensor, sound sensor, infrared sensor, ultrasound sensor, gyroscope, and an accelerometer.