Efficient heat preservation container

The invention relates to an efficient heat preservation container which comprises a box body. An opening and closing door is arranged at the top of the box body, the opening and closing door is slidably connected with the box body, and a placing mechanism for placing materials is arranged in the box body; lifting mechanisms which are symmetrically distributed are arranged at the two sides of the box body, and a heating base is fixed to the bottom end in the box body. Fans are fixed to the two ends of the exterior of the box body, connecting pipes are fixed to the two ends in the box body, and the output ends of the fans are communicated with the connecting pipes; nozzles are arranged at one sides of the connecting pipes and are connected with the connecting pipes through hoses, and lifting air cylinders are fixed to the two sides of the bottom end in the box body. According to the present invention, the problems that an existing heat preservation container is smaller in temperature heating range and uneven in