The invention discloses a multipurpose door device. A moving cavity fixedly arranged in a wall is included, a channel which is through front and back is arranged in the moving cavity, a door is arranged on the left and right end walls of the moving cavity in a sliding manner, a rotating cavity is formed in the door, a rotating assembly is arranged in the rotating cavity, the rotating assembly drives the door to move downwards to the designated position, and meanwhile, motion is transmitted to a power assembly. The device is simple in structure and convenient to operate. Through the rotating assembly, up and down moving of the door is adjusted, power control over an interior door is achieved, efficient control capacity of the device is improved, through the power assembly and a connecting assembly, power is selectively connected with a designated device, diversity of the device is improved, finally, through a switchable motion mechanism, flexible control of the door can be achieved, thework range of the device is widened, the efficiency is improved, the device reliability is improved, and the device is compact in structure, flexible, adjustable, and wide in application range.