Fresh air heat exchange device capable of utilizing residual cold of condensate water and air conditioner

The invention relates to a fresh air heat exchange device and air conditioner capable of utilizing residual cold of condensate water, and the fresh air heat exchange device comprises a condensate water pipe connected to a condensate water discharge port of an outdoor unit; one end of the heat exchange pipe is used for being connected with outdoor fresh air, the other end of the heat exchange pipe is used for outputting the outdoor fresh air into a room, the heat exchange pipe is of a longitudinal surrounding structure, and water outlets of the condensate pipe are formed in the upper sides of the top ends of the heat exchange pipe; condensed water is discharged from the condensed water pipe, flows to the top ends of the heat exchange pipes and then flows downwards along the heat exchange pipes; the box body is used for containing the heat exchange pipe, the box body is provided with an indoor exhaust air inlet and an indoor exhaust air outlet, and indoor exhaust air is introduced into the indoor exhaust air in