The invention provides a device for effectively recovering waste heat of high-temperature wide-screening particle size bulk materials and belongs to the technical field of heat exchangers. The devicecomprises a feeding section, a heat exchange section and a discharge section. The feeding section comprises a screening plate surface, a mechanical vibration device, a feeding hopper and a material blocking plate. The heat exchange section comprises a partition, a serpentine calandria, a heat exchange chamber box body, an air inlet, an air outlet, a direct-indirect heat exchange mixing chamber, anindirect heat exchange chamber and a guide plate. The discharge section comprises discharge hoppers and discharge valves. A wispy distribution/separation device is arranged on the feeding section, sothat the high-temperature solid bulk materials are screened due to the difference in particle size and enter the corresponding heat exchange section to be subjected to waste heat recovery in different regions. The heat exchange sections carry out efficient heat exchange according to the difference of feed particle sizes in each region, and the discharge hoppers are arranged on the discharge section to independently control the mass flow of discharge in each region through the discharge valves. The device is simple and reasonable in structure and flexible to operate, effectively improves the heat recovery efficiency and optimizes the waste heat recovery process.