Closed energy-saving foot warmer

The utility model discloses a closed energy-saving foot warmer. The foot warmer comprises a warming case body which consists of an L-shaped base (1), a sloping board (2) with a foot entering port (3), an upper cover board (4) and special-shaped side boards (7) on the two sides; an electric blanket (8) is laid inside the warming case body; the upper cover board (4) comprises an S-shaped curved surface (5) and two cambered surface covers (6), and a power control switch (9) is arranged between the cambered surface covers (6); the lower sides of the two cambered surface covers (6) are connected with the upper cover board (4) through a hinge; the foot entering port (3) is round and is provided with a flexible shade (12); and a power cord (10) of the electric blanket (8) is connected with the power control switch (9), and then connected with a plug (11). When the closed energy-saving foot warmer is used, as two feet enter the foot warmer from the round-shaped entering port, a relatively closed case body is formed,