Roof unit and air conditioner

The utility model provides a roof unit and an air conditioner. The roof unit comprises a shell, a middle partition plate, a wire passing box and a wire passing ring. A cavity is formed inside the shell. The middle partition plate is fixed into the cavity and divides the cavity into an outdoor side cavity and an indoor side cavity which are not communicated with each other. The wire passing box is located in the outdoor side cavity and fixed to the middle partition plate. An auxiliary wire inlet and an auxiliary wire outlet which are communicated with each other are formed in different side faces of the wire passing box. A wire outlet is formed in the middle partition plate. The side face, provided with the auxiliary wire outlet, of the wire passing box covers the wire outlet and makes the auxiliary wire outlet communicated with the wire outlet. The wire passing ring is sealed on the auxiliary wire inlet. According to the roof unit, the wire passing ring is sealed on the auxiliary wire inlet, and therefore wat