In [1]:
import pandas as pd

In [2]:
df = pd.DataFrame([
    [1, 2, 'a', 3],
    [4, 5, 'b', 6],
    [7, 8, 'c', 9],
])
df


Out[2]:
0 1 2 3
0 1 2 a 3
1 4 5 b 6
2 7 8 c 9

In [3]:
df.dtypes


Out[3]:
0     int64
1     int64
2    object
3     int64
dtype: object

In [4]:
df[df.columns[df.dtypes != object]]


Out[4]:
0 1 3
0 1 2 3
1 4 5 6
2 7 8 9

In [ ]: